液体的

With the photoelectric timing at the graduated cylinder connected with the capillary tube, the flow measurement accuracy is greatly improved.

在接毛细管输出液体的量筒处加上光电计时，可使测量液体的流速的精确度提高。

The condensability of liquid,the Westphal's effect and the continuous flow condition are not only comprehensively considered,but also the dynamic property of the ball valve being established.

结合现场试验，根据直线电机采油泵运动特性，综合考虑了液体的可压缩性、魏氏效应、液体连续流动条件和球阀的动力特性，建立了直线电机采油泵球阀运动规律的精确运动微分方程组。

The studies of ILs accords with the development of green chemistry, and have received great attention by the researchers in the world in recent years.

离子液体符合绿色化学发展的要求，有关离子液体的研究是近年来世界各国研究者共同关注的课题。

The surfactants can decrease the surface tension of liquid and the interfacial tension of two-phase liquid.

表面活性剂能够减小液体的表面张力以及两相液体间的界面张力，界面张力的减小有利于促进气体水合物快速形成和提高水合物储气能力。

In this paper, after a brief introduction for the composition and structure of lignin, cellulose, hemicellulose and room-temperature ionic liquids, the recent progress in dissolution and separation of lignocellulose with ionic liquids is reviewed.

本文在介绍木质素、纤维素、半纤维素和相关室温离子液体的组成与结构的基础上，综述了室温离子液体在溶解、分离木质纤维素方面的研究进展。

Transesterification of geranol and vinyl acetate in ionic liquids were investigated to synthesize geranyl acetate using immobilized Candida antarctica lipase B as biocatalyst. The reuse of ionic liquids and lipase were also studied in this reaction.

以固定化的南极假丝酵母脂肪酶为催化用酶催化香叶醇和乙酸乙烯酯在离子液体中的酯交换反应，合成了香料乙酸香叶酯，同时通过该反应了解了酶和离子液体的重复利用性。

Starting from the hydroxylamine (dimethyl amino ethanol, triethanolamine) and 1, 3-propane sultone, a series of hydroxyl and sulfonyl dual-functionalized zwitterionic salts were synthesized. Then dual-functionalized ionic liquids containing both hydroxyl and sulfonyl functional groups were produced successfully by zwitterionic salts and three kinds of strong acids (p-toluene sulfonic acid, trifluoromethanesulfonic acid, methanesulfonic acid) respectively. The structure of zwitterionic salts and dual-functional ionic liquids were confirmed by the 1H NMR and IR.

以羟基有机胺(N，N-二甲基乙醇胺，三乙醇胺)为原料与1，3-磺酸内酯反应合成了一系列含有羟基和磺酸基双官能团的内盐，并将所得到的内盐分别与三种强酸(对甲苯磺酸，三氟磺酸，甲磺酸)反应，成功地合成了双功能化室温离子液体，并通过红外光谱、核磁氢谱测定，证实了内盐和双功能化离子液体的结构。

They are consistent with the fact that the viscosities for most of the ILs are much higher than water.

结果表明，胍类离子液体相对于普通溶剂扩散很慢，同体系离子液体的活动性随着烷基侧链的缩短而减弱。

The flash point and the spontaneous ignition temperature of binary flammable liquid mixtures consisting of alcohol species,ketone species,aether species and ester species with different proportion were studied by automatic closed-cup flash point tester and automatic ignition temperature detector.

利用自动低温闭口闪点测定仪、自动引燃温度测定仪对醇、酮、醚、酯等不同情况下组成的二元混合液体的闪点、自燃点变化规律进行了实验研究，采用Taylor多项式，拟合出了常压下二元混合液体闪点、自燃点随组分配比变化的经验计算公式，并通过实验数据对其进行了验证。

In some cased, the Westphal balance is used, for example, in the determination of the relative density of a volatile liquid.

液体药品的相对密度，一般用比重瓶测定；测定易挥发液体的相对密度，可用韦氏比重秤。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。