查询词典 A.N.
- 与 A.N. 相关的网络例句 [注:此内容来源于网络,仅供参考]
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When n/n=0, the product is the mixture of h-WO3 (hexagonal system WO3) and WO3.1/3H2O, and have a morphology of nanorods; when n/n=0.5 or n/n=l, the product is γ-WO3, and have a morphology of rectangular flakes; when n/n=2, the product is β-WO3, with the same morphology of rectangular flakes.
当n/n=0时,产物为h-WO3和WO31/3H2O组成的混合物,形貌为纳米棒;当飞n/n=0.5和n/n=1时,产物为γ-WO3形貌为矩形片;当n/n=2时,产物为β-WO3,形貌同样为矩形片。
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Disclosed is a leaky-wave dual polarized slot type antenna, including: first and second feeding circuit sections comprised of N-first strip lines and N-second strip lines with a loop every first period along the X-axis on the first dielectric layer and a second period along the Y-axis, in which the N-first strip lines and the N-second strip lines are parallel to each other being alternate, and each length of Ls1 and Ls2 for the first period satisfies the equation of , first and second multi-channel dividers formed at once and the other sides of the first dielectric layer, to connect the N-first strip lines and the N-second strip lines parallel with each other; and first and second central ports formed in the opposite direction of the cavity, each of the feeding circuit sections being connected to the first and second multi-channel dividers; and first and second slot sections being formed by patterning the second shielding layer, in which M-first and M-second slots are arrayed along the direction of the X-axis and each of the first and second slots forms N-row first and N-row second slot arrays, respectively, which cross the first and second strip lines for each, the first slot and the second slot being orthogonal to each other.
公开了一种漏泄波双偏振槽型天线,包括:第一和第二馈电回路部分,其具有沿着X轴在第一介电层每第一周期以及沿着Y轴的第二周期形成具有环路的N第一带状线和N第二带状线,其中N第一带状线和N第二带状线彼此平行并交替,并且对第一周期的各Ls1和Ls2的长度满足等式,第一和第二多通道分配器寻形成在第一介电层的一侧和另外一侧上,以连接彼此平行的N第一带状线和N第二带状线;以及形成在腔的相对方向中的第一和第二中心端口,每个馈电回路部分连接到第一和第二多通道分配器;以及第一和第二槽部分,所述第一和第二槽部分通过对第二屏蔽层形成模式而形成,其中M第一和M第二槽沿着X轴的方向安置,各第一和第二槽分别形成N行第一和N行第二槽阵列,其对每个横过第一和第二带状线,第一槽和第二槽彼此正交。
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The invention discloses the anti-fake method by using the 3D stereoscopic icon, which can show 3D stereoscopic icons and hide the confidential image information in the 3D stereoscopic icons, comprising the following steps of: obtaining parameters, inputting confidential images and grey images; then using a visual divided storage method to build n visual divided storage images, using a 3D stereograph method to build n 3D stereoscopic images, adjusting the sizes of the n visual divided storage images and the n 3D stereoscopic images and dividing the n visual divided storage images and the n 3D stereoscopic images into a plurality of basic blocks; finally random choosing the basic blocks in the corresponding positions in the visual divided storage images or the 3D stereoscopic images to build n 3D stereoscopic and visual divided storage icons, etc.
为了既能三维立体显示图标,又能在三维显示的图标中隐藏秘密图像信息,本发明公开了利用三维立体图标防伪的方法,包括获取参数,输入秘密图像和灰度图像;然后利用可视分存方法构造n幅可视分存图,利用三维立体画方法构造n幅三维立体图,调整所述n幅可视分存图和所述n幅三维立体图大小并分成多个基本块;最后随机选取可视分存图或三维立体图中相应位置处的基本块,构造n幅三维立体可视分存图标等步骤。
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This work, concentrated on the asymmetric allylation of aldehydes controlled by different chiral auxiliaries prepared from rotational pure tartaric acid, can be divided into three parts.The first part aims to review the developments of chiral drugs and asymmetric synthesis, from which derived the present research topic backgrounds and works.Synthesis and applications of allylation from aldehydes are the second part of the thesis. By optimizing the reaction conditions, such as solvents, temperature, time and chiral auxiliaries like N,N\'-dibenzyl tartamide, N,N\'-p-dimethylphenyl tartamide, N,N\'-o-dimethylphenyl tartamide, N,N\'-o-dichlorophenyl tartamide, N,N\'-a-dinaphyl tartamide, N,N\'-dicyclohexyl tartamide and N,N\'-diphenyl tartamide, ideal experimenttal conditions are obtained according to HPLC monitoring, as well as the auxiliaries\' recoveries experiments. Starting from benzaldehyde and 3-bromopropaldehyde, N,N\'-dibenzyl tartamide is considered the best auxiliary in this reaction.
本文介绍了醛的不对称烯丙基化反应,以光学纯酒石酸为原料,研究了不同构型手性配体在醛的烯丙基化反应中的立体选择性,全文共分三部分十个章节:第一部分对当前手性药物和手性技术进行了概述,并由此展开了本文的研究背景和任务;第二部分为有机合成部分,对醛的不对称烯丙基化反应进行了深入探讨,以苯甲醛为原料对反应条件进行优化,在优化的反应条件下对制备的七种可回收手性酰胺配体(N-苄基酒石酸二酰胺、N-对甲苯基酒石酸二酰胺、N-邻甲苯基酒石酸二酰胺、N-邻氯苯基酒石酸二酰胺、N-a-萘基酒石酸二酰胺、N-环己基酒石酸二酰胺和N-苯基酒石酸二酰胺)进行筛选,优化配体回收实验条件,最终确定出N-苄基酒石酸二酰胺在苯甲醛的不对称烯丙基化反应中具有较大优越性,结晶回收的手性配体光学纯度保持不变。
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The increased amount of non--exchangeable NH4^+-N during the incubation indicated as the following tendency, namely, Eum-Orthic Anthrosols 〉 Los - Orthic Entisols 〉 Hap-Ustic Isohumisols 〉 Ust-Sandiic Entisols. Organic material influenced significantly the increased amount of non-exchangeable NH4^+-N (P was 0.0002, 0.0004 and 0.0003 when incubated at 20 d, 50 d and 60 d, respectively). NH4^+-N increased remarkably when Stlpa bungeana and Medicago sativa were added compared with no addition. The contents of non-exchangeable NH4^+-N increased significantly when added (NH4)2SO4 compared without addition at 20 d, 40 d and 60d of incubation and P was 0.0037, 0.0033 and 0.0027, respectively. It was the result that the NH4^+-N from (NH4)2 SO4 was fixed within the soil. The increased amount of non-exchangeable NH4^+-N increased significantly for different soils, on which different vegetation types grew before the collection of soil samples, when incubated at 20 d (P=0.0434), but not significantly at 40 d and 60d (P=0.7378 and 0.5375). The increased amount of non-exchangeable NH4^+-N in the soil, on which crop straw and nitrogen fertilizer had been incorporated for a long-term period, was larger than that of no addition, but it was not significantly different among these two fertilization models. Soil clay, total N and organic matter were positively correlated remarkably with the contents of non-exchangeable NH4^+-N, the increased amount of non-exchangeable NH4^+-N had no correlation with soil clay, whereas it had significantly positive correlation with total N and organic matter.
培养期间非交换性NH4^+-N的增加量均表现为以土垫旱耕人为土最大,其次是黄土正常新成土,简育干润均腐土和干湿砂质新成土较小;添加有机物料极显著影响培养期间的非交换性NH4^+-N增加量(培养20d、40d和60d时P分别为0.0002,0.004和0.0003),表现为紫花苜蓿和长芒草土壤非交换性NH4^+-N的增加量均极显著高于不添加有机物料的对照土壤;在培养20d、40d和60d时,加(NH4)2SO4土样非交换性NH4^+-N的增加量显著大于不加(NH4)2SO4土样(户分别为0.0037,0.0033和0.0027),这是土壤对(NH4)2SO4中NH4^+-N固定的必然结果;不同植被类型土壤培养20d时的非交换性NH4^+-N增加量差异显著(P=0.0434),培养40d和60d时差异不显著(p分别为0.7378和0.5375);长期秸秆和氮肥配施土壤非交换性NH4^+-N增加量大于不施肥对照土壤,但差异不显著土壤黏粒、全氮和有机质与培养0d、20d、40d和60d时土壤的非交换性NH4^+-N含量均呈极显著正相关;而非交换性NH4^+-N的增加量与粘粒无相关性,但与全氛和有机质呈显著正相关。
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In this paper, firstly using natural fatty acids including lauric acid, myristic acid, palmitic acid etc. and disproportionated rosin as starting materials, the acyl reaction of starting materials with SOCl_2 respectively, and then using Schotten-Baumann condensation: on the reaction conditions of alkalescence, condensation of acylchloride with amino acid (sarcosine, glycine, alanine etc.), and then acidification, saltation. A series of anionic surfactants of N-acyl amino: sodium N-fatty acyl sarcosinate (SFS-12, SFS-14, SFS-16); sodiun N-fatty acyl glycinate(SFG-12, SFG-14, SFG-16); sodium N-fatty acyl alaninate(SFA-12, SFA-14, SFA-16)and sodium N-disproportionated rosinoyl aminatewere prepared. During the preparation of N-acylamino acid, the reaction conditions of acylchloride with amino acid condensation were identified by optimizing the synthetic conditions of N-lauroyl sarcosine: mol ratio of amino acid to acylchloride 2:1, reaction taken place in a solvent composed by acetone/water 2:1, acylchloride and 20% NaOH were slowly added to the reaction mixture at the same time while maintaining the pH at 9~10, after completion of adding maintaining reacting for 2.5h at 25℃.
首先以月桂酸、肉豆蔻酸、棕榈酸等天然脂肪酸和歧化松香为原料,与氯化亚砜反应制得酰氯,然后采用Schotten-Baumann 缩合法路线,即在碱性条件下,酰氯和氨基酸(肌氨酸、甘氨酸、丙氨酸等)缩合,经过酸化、成盐,合成一系列氨基酸型阴离子表面活性剂:脂肪酰肌氨酸钠,即月桂酰肌氨酸钠(SFS-12)、肉豆蔻酰肌氨酸钠(SFS-14)、棕榈酰肌氨酸钠(SFS-16);脂肪酰甘氨酸钠,即月桂酰甘氨酸钠(SFG-12)、肉豆蔻酰甘氨酸钠(SFG-14)、棕榈酰甘氨酸钠(SFG-16);脂肪酰丙氨酸钠,即月桂酰丙氨酸钠(SFA-12)、肉豆蔻酰丙氨酸钠(SFA-14)、棕榈酰丙氨酸钠(SFA-16);N-歧化松香酰基氨基酸钠(sodium N-disproportionated rosinoyl aminate),即N-歧化松香酰基肌氨酸钠(sodium N-disproportionated rosinoyl sarcosinate ,简称SDRS)、N-歧化松香酰基甘氨酸钠(sodium N-disproportionated rosinoyl glycinate,简称SDRG)、N-歧化松香酰基丙氨酸钠(sodium N-disproportionated rosinoyl alaninate,简称SDRA)。
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In order to assess the change of triploid populus tomentoza pulp plantation long-term-site productivity, The paper studied on effects of aboveground litterfall, fine root turnover and wet dust precipitation in nutrient cycling of triploid populus tomentoza pulp plantations at different ages,namely 2a、4a、5a、6a.It studied influence of different factors on decomposition of leaf、tree bark and twig of triploid populus tomentoza to select the operations to accelerate the decomposition and nutrient release. Finally, it studied influence of different intercrops on plantation site productivity and the relationship of intercrops and triploid populus tomentoza to select suitable intercrops. The main results as follows:(1)The aboveground litterfall of triploid populus tomentoza increased along with age from 216.03±59.7gm~(-2) at 3a to 482.38±101.3gm~(-2) at 7a, The N returned by litterfall wasl8.38±2.46kg.hm~(-2)a~-121.63±2.25kg.hm~(-2a~-139.51±4.61kg.hm~(-2a~-138.89±4.89kg.hm~(-2a~(-1) at 3a、5a、6a、7a respectively. The P returned by litterfall was 5.80±0.62kg.hm~(-2)a~(-1)、8.16±0.94kg.hm~(-2)a~(-1), 11.31±1.33kg.hm~(-2)a~(-1)、11.76±1.37kg.hm~(-2)a~(-1) at 3a、5a、6a、7a respectively. The nutrient returned by fine root turnover increased along with age, too. The N returned by fine root turnover was 3.85±0.41kghm~(-2)a~(-1)、5.22±0.63kghm~(-2)a~(-1),7.62±0.89kghm~(-2)a~(-1),9.17±1.22kghm~(-2)a~(-1) at 3a、5a、6a、7a respectively. The P returned by fine root turnover was 0.73±0.07kghm~(-2)a~(-1)、1.69±0.09kghm~(-2) a~(-1)、1.92±0.31kghm~(-2)a~(-1)、1.96±0.21kghm~(-2)a~(-1) at 3a、5a、6a、7a respectively. The leaf was the principal pathway to return nutrient to soil among litterfall, fine root turnover and wet dust precipitation. The proportion of returned N by leaf was 74.84%、71.96%、78.58%、75.03% at 3a、5a、6a、7a respectively,The proportion of returned P by leaf was 85.93%、80.31%、83.04%、83.23% at 3a、5a、6a、7a respectively. Therefore, it is important to protect and utilize the leaf in order to maintenance and enhance the long-term-site productivity of triploid populus tomentoza pulp plantation.
本文采取时序研究法,以3a、5a、6a、7a共4个不同年龄的三倍体毛白杨纸浆林为对象,研究了地上凋落物、细根周转、湿沉降在林分N、P营养元素循环中的作用及不同年龄林分N、P营养元素循环的特征,以评价三倍体毛白杨纸浆林长期立地生产力的变化;采取网袋法研究了不同因素对落叶、树皮、树枝分解的影响,以确定加快其分解、促进养分释放的措施:同时研究了不同间作物对林地影响、林木与间作物之间关系,以选择能维持立地生产力的合适的间作物种类等内容,得到以下结论:(1)随着年龄的增加,三倍体毛白杨地上凋落物的数量从3a的216.03±59.7gm~(-2)增加到7a的482.38±101.3gm~(-2),通过凋落物归还的N分别为:3a时为18.38±2.46kg.hm~(-2)a~(-1),5a时为21.63±2.25kg.hm~(-2)a~(-1),6a时为39.51±4.61kg.hm~(-2)a~(-1),7a时为38.89±4.89kg.hm~(-2)a~(-1),归还的P分别为:3a时为5.80±0.62kg.hm~(-2)a~(-1),5a时为8.16±0.94kg.hm~(-2)a~(-1),6a时为11.31±1.33kg.hm~(-2)a~(-1),7a时为11.76±1.37kg.hm~(-2)a~-1随着年龄的增加,通过细根周转归还的养分也在增加,归还的N分别为:3a时3.85±0.41kghm~(-2a~(-1),5a时5.22±0.63kghm~(-2)a~(-1),6a时7.62±0.89kghm~(-2)a~(-1),7a时9.17±1.22kghm~(-2)a~-1归还的P分别为:3a时0.73±0.07kghm~(-2a~(-1),5a时1.69±0.09kghm~(-2)a~(-1),6a时1.92±0.31kghm~(-2)a~(-1),7a时1.96±0.21kghm~(-2)a~-1从地上凋落物、细根周转、湿沉降三种不同途径归还林地养分所占的比例来看,地上凋落物中的落叶是归还养分主要途径,年龄在3a、5a、6a、7a时,通过落叶归还的N所占比例分别为74.84%、71.96%、78.58%和75.03%,归还的P所占比例分别为85.93%、80.31%、83.04%和83.23%。
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The invention discloses a high-voltage P-type metal oxide semiconductor, including a P-type substrate, a deep N-well is arranged on the P-type substrate, an N-well drift region and a P-type drift region are arranged on the deep N-well, an N-type contact hole, a P-type source and a field oxide layer are arranged on the N-well, a P-type drain and the field oxide layer are arranged on the P-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the N-well is smaller than the grid oxide layer part which is positioned above the P-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly.
本发明公开一种高压P型金属氧化物半导体管,包括P型衬底,在P型衬底上设有深N型阱,在深N型阱上设有N型阱和P型漂移区,在N型阱上设有N型接触孔、P型源及场氧化层,在P型漂移区上设有P型漏及场氧化层,其特征在于位于N型阱上方的栅氧化层部分的厚度小于位于P型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层。
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The invention discloses a high-voltage N-type metal oxide semiconductor, including a P-type substrate, a P-well drift region and an N-type drift region are arranged on the P-type substrate, a P-type contact hole, an N-type source and a field oxide layer are arranged on the P-well, an N-type drain and the filed oxide layer are arranged on the N-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the P-well is smaller than the grid oxide layer part which is positioned above the N-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly, a P-type impurity injection region is arranged in the P-well, and the P-type impurity injection region is positioned below the thin grid oxide layer.
本发明公开一种高压N型金属氧化物半导体管,包括P型衬底,在P型衬底上设有P型阱和N型漂移区,在P型阱上设有P型接触孔、N型源及场氧化层,在N型漂移区上设有N型漏及场氧化层,其特征在于位于P型阱上方的栅氧化层部分的厚度小于位于N型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层,在P型阱内设有P型杂质注入区且该P型杂质注入区位于薄栅氧化层的下面。
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NI needed Benjamins \nbut this int worth the stress \nMaybe theres a better way \nto fix this greasy mess \nWere a champion team \na well-oiled machine \nand weve faced tougher problems than this \nI know its a grind \nbut Ill sure we can find \na way to have fun \nwhile we get this job done \nWeve got to wo
n我需要班杰民\n但是这 int 价值压迫力\n也许那里一个较好的方法\n固定油腻的乱七八糟\n一个冠军队是\n一部井-涂油的机器\n而且 weve 超过这面对了较强硬的问题\n我知道它的磨\n但是生病的确信我们能找\n一个方法有乐趣\n我们把这一个工作弄完成了\nWeve 开始工作,工作在外工作\n很好地使事物正确\n太阳将会发亮\n如果我们工作,工作\ntherell 不是怀疑\n如果我们全部一起工作\n我们能工作出它~~~~\n告诉我你想要的\n告诉我你需要的\n一点糖\n一点奶油\n它的完美的食谱!
- 相关中文对照歌词
- A.N.T.S.
- C.A.N.C.E.R
- B.A.N. (The Love Song)
- A.N.G.E.L.
- G-A-N-G-S-T-E-R
- W-O-M-A-N
- S.A.N.T.A.N.A.
- S.C.A.N.D.A.L.
- S.A.N.T.A.N.A.
- Keep It G.A.N.G.S.T.A.
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力