查询词典 yield
- 与 yield 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Mostly static reserve, faults at boundary and big fall in coal mine make water flow from limestone aquifer to opposite sandrock aquifer, mostly poor water yield property but partly better water yield which developed at faults, fold axis and sandrock crack are the characters of this aquifer.
该含水层具有以静储量为主、边界断层及井田内落差大的断层使灰岩含水层补给断层对盘砂岩含水层,总体上富水性弱,但局部富水性强,富水区一般在断层、褶皱轴部及砂岩裂隙发育区的特点。
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A new fullerene derivative containing energy-producing groups was prepared, and the reaction conditions affecting the yield were studied by the kroenecker method. The optimal reaction conditions with a 53.5% yield (based on consumed C60) are: 1:3:6 of molar ratio of C60 , o–nitrobenzaldehyde and sarcosine , 55℃ of reaction temperature, 12 h of reaction time, 40mL of toluene solvent.
利用N-甲基甘氨酸、邻-硝基苯甲醛和C60反应,合成分离出了含有硝基的新型富勒烯吡咯烷衍生物,通过正交试验对其工艺条件进行了研究,探讨了反应物剂量比、温度、时间和溶剂体积对产物产率的影响,得到了合成产物的最佳工艺条件:反应物剂量比为1:3:6、温度为55℃、反应时间为12h、溶剂甲苯体积为40mL,此时产物产率可达到53.5%(以消耗的C60计)。
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Based on the investigation of the transesterification between dimethyl sebacate and 1,2,2,6,6-pentamethyl-4-piperinol, the synthetic technologies of Tinuvin292 and Tinuvin 765 were established. The two kinds of hindered amine light stabilizers were obtained in the yield of 93.3% and 92.4% respectively and qualified as the advanced level of the kindred overseas products.2. The synthetic technology of Tinuvin123 was studied and established. Using 2,2,6,6-tetramethyl-4-piperinol as the starting material, the product was synthesized successfully through oxidation, free-radical reaction and transesterification in overall yield of 57.6%.
本文研究建立了三个受阻胺类光稳定剂的合成工艺,探索了聚合型受阻胺类光稳定剂生产过程中不溶性副产物产生的原因,并设计、合成了一系列具有抑菌活性的新型受阻胺类光稳定剂。1、在研究癸二酸二甲酯与1,2,2,6,6-五甲基哌啶醇的酯交换反应的基础上,建立了受阻胺类光稳定剂Tinuvin292、Tinuvin765的合成工艺,分别以93.3%和92.4%的收率得到了光稳定剂Tinuvin292、Tinuvin765,所得产品质量达到了国外同类产品的水平。2、研究建立了受阻胺类光稳定剂Tinuvin123的合成工艺。
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The experimental results indicated that the addition of yellow serofluid had better nitrogen source effects than carbamide with its optimal addition level as 2 %(cell concentration increased by 18 %, bud ratio increased by 16 %, and liquor yield by alcohol fermentation increased by 2.2 %), which could settle the problem of environment pollution induced by direct discharge. The use of yellow serofluid in the production of alcohol from cassava could increase alcohol content in fermenting solution and liquor yield by 14.2 %Vol and by 35.5 % respectively.
结果表明,添加黄浆水作为酒母培养的氮源效果优于尿素;最适添加量为2 %;成熟酒母发酵液中细胞浓度比尿素作营养盐时提高18 %,出芽率提高16 %,酒精发酵出酒率提高2.2 %;可解决直接排放带来的环境污染问题;用于木薯原料酒精发酵,发酵液中酒精度可达14.2 %Vol,原料出酒率为35.5 %。
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And the PLA/Chitosan/ACP barriers with additional 2 wt% chitosan still maintain 56.58 % antibacterial ability after eightieth day. The different composition of PLA/Chitosan/ACP composites was prepared by water washing solidification from NMP/water/lactic acid consolvent. After storing at room temperature for 48 hours and taking it out to obtain a shapable composites. To investigate the influence of ratio of composition with the shapable property of composites, it was analyzed by Rheometer, TGA, AFM, XRD. The result of the different APC content had different effect both water content and yield stress of composite materials. The yield stress decreased with ACP content while increases. It was derived that ions, released from ACP interact with amide groups of chitosan to form water-absorbing ionic clusters through chelating or electrostatic attraction.
另外,以聚乳酸/几丁聚醣作为基材并添加不同比例的非晶型磷酸钙,经过水洗固化后可得白色片状沉淀物,於室温下静置48小时后,复合材之体积呈现膨胀且具有可塑形之特性,以热重分析仪与流变仪分析样品之含水率与屈伏应力,结果显示不同ACP含量对复合材含水率与屈伏应力具有消长变化,而PLA/Chitosan/ACP之可塑程度与其所吸收之水份多寡有关,推测可能机制为ACP磷酸钙盐解离后之金属离子与几丁聚醣之胺基透过螯合作用或静电吸引之交互作用,形成具吸水性之离子团簇分散於疏水性之聚乳酸基材中。
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Methodswith yield of total flavonoids and the sum integral relative peak area of total flavonoids in hplc chromatograms as the index, orthogonal experiment was carried to investigate factors of temperature, solid-liquid leaching rate, concentration of alcohol, which impact the yield of total flavonoids from sorbus tianshanica rupr.
方法采用正交实验,分别以比色法测定总黄酮提出率和高效液相色谱图谱中总黄酮相对积分峰面积为指标,考察提取温度、料液比、醇浓度对天山花楸叶中总黄酮提出率的影响。
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Under the optimum conditions of n: n=40, mass percentage of ZrO2 18%, temperature 400℃, m m=0.02 and reaction time 0.5 h, the conversion was 91.2% and the yield of liquid products was 83.6%. Compared with the results obtained by thermal pyrolysis and catalytic pyrolysis on HZSM-5, ZrO2/Ti-MCM-41 was of better catalytic activity and higher yield of liquid products, and was especially suitable for the pyrolysis of sterically hindered polymers such as PP.
结果表明,n:n=40,ZrO2负载质量分数为18%的ZrO2/Ti-MCM-41,在反应温度400℃,m(ZrO2/Ti-MCM-41):m=0.02,反应时间30min的条件下,PP的转化率可达91.2%,液体产物的收率为83.6%,该结果优于热裂解及传统的HZSM-5小孔分子筛催化剂的催化裂解结果。
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Second, flood also caused the reduction of the local arable land and terrene deterioration in the domain of agricultral production, which caused the cultivation system changed, from the high yield rice farming to the low yield dry farming of gain one time every year.
水患的社会影响首先在物质层面,第一,水患导致了淮河流域人口的缺损,主要表现在两个方面:一是水灾造成的直接人口损失;二是因水灾而起的瘟疫、劳役等引起的间接人口缺失,损失巨大,触目惊心。
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Correlation analysis of both chlorotic plants and plants staying green of the F3populations revealed that there was a significant positive correlation between yield index values and the physiological indices net photosyn- thetic rate, stomatal conductance, and chloro- phyll, as well as a significant negative correlation between yield index values and the physiological indi- ces intercellular CO2 concentration and malondial- dehyde.
相关性分析表明收获指标与生理指标,如净光合速率、气孔导度、叶绿素含量等呈显著正相关;而与细胞间CO2 浓度及丙二醛含量呈显著负相关。
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Accordingly, for the angle that carries out from policy, grow to long-term economy, how to yield to undertake with interest rate change policy is coordinated to capital limit and yield according to capital limit the control element change of backside makes new industrial policy timelily become very significant.
因此,从政策实践的角度来说,对于长期的经济增长,如何对资本边际产出与利率变化进行政策协调以及根据资本边际产出背后的控制因素变化适时地制定新的产业政策变得非常有意义。
- 相关中文对照歌词
- Yield To Temptation
- I Yield
- Yield
- Yield My Heart
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。