查询词典 from that time on
- 与 from that time on 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The phylogeny and applied prospect of MES are summarized in the paper. The principle of this system is analyzed from the point of view of acoustics. The surveying and filtering technology of auxiliary parameters, sounding data and the theory of image form, backscatter strength data processing, are researched deeply in the paper. The optimal model of velocity of sound is given. For sound ray tracing, some methods of correction of sound ray curve are developed. At the same time, an ideal model of sound ray tracing is proved and given. The GPS technology is applied for the determination of tide, attitude of vessel. Moreover, some methods are given. As an important topic, the systematic error is discussed in the paper. Some filtering methods are researched in this paper. Based on the current methods of image processing, the procedure and methods are tested and given that adapt to sonar image processing.
本文研究的工作是在总结多波束声纳测深系统的发展历史、应用前景的基础上,从声学角度分析了多波束系统的工作原理;对多波束辅助参数的测定和滤波方法、测深数据的滤波方法、多波束声纳图像的形成机理、图像处理以及最终应用等作了比较深入的研究;得出了适合于多波束精密深度计算的最优声速模型和声线改正模型;提出了 GPS 载波相位定位技术用于多波束辅助参数测量的思想、算法,改善了多波束系统的作业模式;系统地分析了深度数据的误差来源和类型,首次将系统误差作为影响测深精度的主要因素给以研究,并给出了削弱系统误差的方法,提高了深度数据的质量;对多波束声纳图像的形成、处理方法进行了细致的研究,给出了适合多波束图像处理的算法和流程,并从理论和实践上对声纳图像的应用进行了比较全面的研究。
-
Actually vendibility is an economic category that is different from value at all, they show difference in the Dou Youming on time, standard, amount, condition and administrative levels.
其实市场价值是一个根本不同于价值的经济范畴,它们在时间、标准、数量、条件和层次上都有明显差异。
-
Sewerage pump pool must be installed at lower place,designed for discharging the castoff that producted by men in time.all the live draining water from the basement,such as basin,commode,washer machine,fabric pool,shower bath and bathtub so on contact with the sewerage pump pool ,and than drain into sewage well outside by passing through the watershoot,the pump pool should not have water ,or it will drunk the pump machine bad,make which can not operate normally.
对我来说有点难,请高人帮忙看看如何翻!急!污水泵池是为了及时排出生活中所产生的废弃物而设计的,必须安装在较低的位置。地下室所有的生活排水,如:面盆、恭桶、洗衣机、墩布池、淋浴间、浴缸等设施的排水都要经过排水管道与污水泵相连接,再通过排水管道直接排至室外污水井,泵池内不应有水,否则会泡坏污水泵电机,导致电机不能正常运行。
-
Grew on the normal temperature, it was shown that the deposits of calcium antimonate being the indicator for Ca(superscript 2+) localization mainly concentrated within the vacuoles and intercellular spaces and there was also some Ca(superscript 2+) deposits in cell walls. But when Garyota urens L. was treated by the temperature of 2℃ for 48 h, the level of Ca(superscript 2+) increased in cytoplasm and plasma membrane, but decreased in vacuoles and intercellular spaces considerably. At the same time, the ultrastructure of chloroplasts suffered from chilling: the membrane of chloroplasts had been damaged, the layer of thylakoids was exiguous and unclear, the photosynthetic rate decreased evidently. And when Garyota urens L. was treated by the temperature of 2℃ for 120 h, the deposits of Ca(superscript 2+) mainly concentrated within the cytoplasm, nucleus and plasma membrane and there was also some Ca(superscript 2+) deposits in vacuoles, and the ultrastructure of some cells was simultaneously damaged severely: Chloroplasts structure, vacuole membrane and nuclear membrane had been damaged fully, the structure within the cell had become unclear, and the cell only have respiration.
研究结果表明,未经低温处理的董棕幼苗叶肉细胞,焦锑酸钙沉淀颗粒大量出现在液泡和细胞间隙中,细胞壁中也可见少量沉淀,而细胞基质中则看不到焦锑酸钙沉淀;经2℃ 48 h低温处理后,细胞基质和细胞膜上焦锑酸钙沉淀增加,而液泡和细胞间隙中的焦锑酸钙沉淀则显著减少,并且超微结构已初步显示出寒害的特徵,叶绿体外膜部分破损,类囊体片层稀疏且排列不规则,光合速率明显下降等;经2℃ 120 h低温处理后,细胞间隙内的焦锑酸钙沉淀极少,有的也紧贴在细胞外壁上,而细胞基质和细胞膜上则分布有非常多的焦锑酸钙沉淀,在核基质和液泡中也可见到少量的焦锑酸钙沉淀,并且超微结构遭到了显著破坏,叶绿体结构完全被破坏,核膜与液泡膜严重破损,内部结构模糊,细胞只表现为呼吸作用,不进行光合作用。
-
At the same time, the New York State Department of Health aired a separate, simultaneous statewide television-based antitobacco media campaign that also targeted New York City, with advertisements featuring graphic images of the effects of smoking and highlighting the effects of secondhand smoke on children. From January through December 2006, New York City adult smokers were exposed to nearly 11,000 GRPs as a result of both campaigns combined, equating to the average viewer in NYC seeing an advertisement approximately 110 times during the year.
同一时期,纽约州健康局则同步向全州收视户播出另一项反菸媒体运动,纽约市亦作为目标区域,它是以吸菸所造成之健康影响的图像,并强调二手菸对儿童的影响为内容的广告;2006年一整年,在两项运动总合的影响力下,纽约市成人瘾君子所接触到的反菸讯息有将近11,000 GRPs,相当於纽约市一般收视观众在一整年当中看同一则广告约110次。
-
Hypogene high thermal or deep source epi-mesothermal condition and it is not only stressed the mantle source simply but also the crust-mantle;②in order to guid ore exploration better the artificial classification of uranium deposits should be broken and uranium ore-forming system strengthened;③much attention should be paid to searching the diabase-hosted rich uranium ore in strongly argillized cataclastic zone;④attention should be paid to the influence of basement of volcanic basin on the uranium ore formation that should be undstood both in feeling and theoretically through the ore propect process;⑤relation of red basin with uranium ore formation can be made clear from analyzing tectonics, paleo-climate and time and it is not only theoretically important but also helpful to uranium ore prediction;⑥crypto explosive pipe is an uranium ore, rich uranium ore host structure and it is the next goal for uranium ore exploration in east China.
摘要文章论述了华东火山岩型铀矿找矿值得重视的地质问题:①铀成矿既可形成于浅源浅成低温条件,也可形成于深源深成高温或深源浅成中低温条件,在强调深源时,不是简单地认为是幔源就可以了,还必须强调壳幔作用的地质过程;②打破人为的&类型&划分,加强&铀成矿系统&的研究,更好地指导找矿;③研究基性脉体与铀成矿问题应注意构造、岩石矿物成分、成因、蚀变与成矿3大问题,注意寻找泥岩化作用强烈的破碎辉绿岩脉中的富铀矿;④火山盆地基底对铀成矿的作用主要是提供铀源,将基底对铀成矿的影响从感性认识推向理性认识,有效地指导找矿;⑤红盆与铀成矿关系可以从构造、古气候及时间分析研究中得出结论,它不仅仅是一个理论问题,而且有助于铀成矿预测;⑥隐爆角砾岩筒是铀成矿、成富矿的重要储矿构造,是华东火山岩型铀矿找矿的新领域。
-
From the point view of product distribution, conversion of dimethyl ether and energy consumption, with RCD plasma DME conversion was higher and was hardly affected by the residence time of dimethyl ether, and hydrogen, carbon monoxide and unsaturated hydrocarbons with RCD plasma were more than those with DBD plasma.There was no liquid product with RCD plasma, but the liquid product obtained with DBD plasma consisted of aldehydes, alcohols and methoxy-containing organic compounds, for instance, formaldehyde, methyl alcohol, dimethoxy ethane and so on.Moreover, most compositions of liquid product were methoxy-containing compounds, and the liquid product selectivity was as high as 32.23%.However, energy consumption for the reaction with DBD plasma was more than that with RCD plasma.
从产物分布、转化率及能耗上看,利用RCD所获得的二甲醚的转化率高,几乎不受二甲醚停留时间的影响,且氢气、一氧化碳和不饱和烃的含量大,几乎没有液相产物,而利用DBD能获得较多的液相产物,包括一些醇、醛和含有甲氧基的有机化合物,如甲醛、甲醇和二甲氧基乙烷,且大部分组成都是含有甲氧基的化合物,液相产物的选择性高达32.23%,但是能耗较大。
-
In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.
本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象,在分析机组结构和特性的基础上,从机组的工作机理出发,以质量、能量、动量守恒定律为依据,将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上,建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型,该模型适合于大扰动全工况变化的数值仿真计算,充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性,并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线,从理论上分析了仿真结果的合理性。
-
PVC Card - Business card printing 】Starting stage: toddlerwho Chinese modern business card printing and membership card technology has remained backward state, and the reforms and opening up huge domestic market demand, makes it possible for a large number of business card printing and membership card-making machinery manufacturing enterprise attention the " business card printing and membership card to make a fast, simple, flexible small initial investment," mechanical structure is relatively straightforward, as a result of small offset printing press from abroad or related technologies such as surveying and mapping of imitation, a group of home-made small offset printing press finally emerged on the market, although it is still a lack of quality, performance bugs such as too, but small offset printing press did meet the cultural Office and entry-level commercial business card printing and membership card industry a lot of business card printing and membership card making machine due to a shortage of market demand, for a time, and that a number of small DependsOn… an offset printing press manufacturer drivage won the first gold of the barrel.
起步期:不矫健学步华夏传统制卡和会员卡制作技艺不断处于迟滞长进的状况,而变革闭塞所带来的浩不小阛阓需求,使得不国际一众量制卡和会员卡制作板滞创作发明企业不兵眼光投向了&制卡和会员卡制作独一、板滞飞迟、不初期投资小、板滞布局不绝差独一&的小胶印机,于是堵住从国际引进或测绘步武等不盖技艺,一批舶来小胶印机毕竟面世了,尽管还是板命质量丰盈、本能机能不敷安定等弊端,但小胶印机的确满意了文化办公范畴及回家级贸易制卡和会员卡制作范畴众量的制卡和会员卡制作机需求,一工夫阛阓求过于供,这也为结果众家小胶印机创作发明商掘得了第一桶金。
-
In order to cutting down the cost, flocculation of recombined Erwinia carotovora-Eccl3B cell from broth, influence of temperature, pH and oxidants on the separation of PHB were studied; and the method which measure the molecular weight of PHB by intrinsic viscosity was also studied; furthermore, a phenomenon was found that insolubility of PHB in chloroform can be changed by pretreated at over 120℃ for the fist time, and the mechanism of this phenomenon was explored.
为了降低成本,提高生产效率,本文针对发酵法生产PHB过程中存在的,发酵液难以分离沉淀,非有机溶剂提取PHB时分子量严重降低等问题,进行了发酵液的絮凝,及温度、pH、氧化剂对提取PHB影响的研究。并对粘度法测定PHB分子量的方法进行了研究,同时,对于研究过程中发现的,加热后PHB在三氯甲烷中的溶解性变化及其原因进行了探索。
- 推荐网络例句
-
According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
-
The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
-
When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。