查询词典 evaporation rate

It,s allelchemicals were isolated through extraction, thin-layer chromatography, and column chromatograpathy. After the white clover was infused in ethanol and evaporation, the leavings was dissolved by water. The aqueous extract was extracted by petroleum,chloroform, ethyl acetate and n-Butanol successively, and the bioassay showed that the chloroform phase has obvious inhibitory effect, the inhibitory rate was 44.32%,88.08% on Abutilon theophrasti M., seedling length and root length, 82.08%,92.16% on Echinochloa crusgalli L., seedling length and root length, and the Amaranthus retroflexux L., germination rate is 0, the secondly was ethyl acetate phase.

运用萃取、薄层层析、柱层析等方法对白三叶草地上部分的化感物质进行初步分离，结果表明，白三叶草经乙醇浸提旋转蒸发后用蒸馏水溶解，依次用石油醚、氯仿、乙酸乙酯、正丁醇萃取，生物测定表明氯仿组分对杂草的抑制作用最强，对苘麻芽长和根长抑制率分别为44.32%、88.08%，对稗草芽长和根长的抑制率分别为82.08%、92.16%，反枝苋的发芽率为0；其次是乙酸乙酯相。

To adopt antiphase evaporation transonic method and high speed agitation method to prepare Semustine Magnetic Liposome, to carry out the exosyndrome with TEM, image analysis system and energy spectrometer, to test the envelopment rate of semustine in the liposome.

采用反相蒸发超声法加高速搅拌制备纳米司莫司汀磁性脂质体，用透射电镜、图像分析系统和能谱仪对其进行表征，HPLC法检验脂质体中司莫司汀的包封率。

Based on different mist evaporation processes,mist movements in smoke and flame with none aerification,partial aerification and total aerification were studied,leading to mist endotherm rate,prediction model for critical mist flow rate and the criterion between defferent aerification processes.

根据雾滴吸热蒸发状态的不同，分别分析了烟气层和火焰区内无汽化、部分汽化和完全汽化时的雾滴运动情况，得出了细水雾吸热速率，建立了临界雾流率预测模型，并给出了不同汽化状态之间的临界判据。

The rate of evaporation in deserts can be 20 times higher than the rate of precipitation.

在沙漠的蒸发率可以是20倍高于当地的年降雨量。

The evaporation of ZrO2 will absorb heat and relieve erosion from oxyacetylene flame on the ablated surface of the specimen, and also accelerate the mass loss of the specimen, which leads to the decrease of the linear ablation rate and increase of mass ablation rate of the composites.

产物ZrO2的蒸发吸收了材料烧蚀表面的热量，减缓了火焰对烧蚀表面的冲蚀，材料的线烧蚀率减小，然而， ZrO2的蒸发会增加材料的质量损失速度，导致材料的质量烧蚀率增大。

The steam distillation. 2.Rotary evaporation distillation, 3.supercritical extraction for the extraction of volatile oil oriental arborvitae, the experiment results showed, 1.the best conditions for the extraction by rotary evaporation are NG:water:ethanol=l:4:4 sawdust under the conditions 50 ° C in temperature, atmospheric pressure 0.1 Pa, extract maximum extraction rate of 90 minutes.

对不同方法提取得到的侧柏挥发性物质的粗提物进行了的触角电位测定和行为测定，确定了利用水蒸气蒸馏、旋转蒸发蒸馏、超临界萃取三种方法进行侧柏挥发油的提取，并通过试验得到旋转蒸发仪萃取的最佳方法为：在木屑：水：乙醇=1：4：4；50℃温度；0.1个大气压的条件下，提取90min的提取率最高。

In order to simulate phenomenologically the process of transformation from fuel injection rate to heat release rate, a quasi-dimensional combustion model has been established, which includes fuel-air mixing, droplet evaporation, ignition delay, heat release and heat transfer.

在只有喷油规律的条件下，本文建立了分韦柏放热规律模型，通过对喷油规律依次分段，各分量按各自韦柏规律燃烧，实现了从喷油规律对放热规律的直接快速预测。

WAXD study betokened that both too fast and too slow heating rate go against the formation of ordered aggregation structures in the film; while moderate heating rate made imidization temperature, solvent evaporation speed and chain mobility cooperate well and facilitated chains arrange into regular crystalline structure.

WAXD的研究表明：升温速率过快或者过慢都不利于薄膜聚集态有序结构的形成。

The main content consists of the following aspects: The essential techniques of rate control are introduced, such as the principle of rate detection by quartz crystal﹑the relationship between filament emission current and filament temperature﹑the temperature dependence of material evaporation characteristic﹑the electron beam focalizing characteristic and the theory of rate closed-loop control.

主要内容包括以下几个方面：围绕电子束蒸发速率控制综合了速率控制的相关技术，比如蒸发速率石英晶振探测的原理﹑灯丝发射电流与灯丝温度的关系﹑膜料蒸发特性与蒸发温度的关系﹑电子束焦斑聚焦特性及速率闭环控制的原理。

The factors which affect the rate of evaporation in enclosed LNG storage tank are various, and they mainly are the initial filling rate, the ambient temperature , the insulation structure (effective thermal conductivity ), the initial pressure within the tank, the tank pressure of work , the amount of nitrogen in LNG, the tank volume size and so on.

影响密闭LNG储罐蒸发率的因素是多方面的，主要有储罐的初始充满率、环境温度、储罐保温结构、储罐内的初始压力、储罐的工作压力大小、LNG中含氮量的多少、储罐的容积大小等。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。