查询词典 ether

Methods: water decocting method for extracting method, ether as extraction solvent with high performance liquid chromatography, as the means, to test content of methanol 0-3 % diethylamine (73:27) as mobile phase, 242nm detected wavelength, according to the packing: Hypersil BOS C18 5 muon m size: 6 mm (4): 25 mm, standard curve basic linear, precision, accuracy, good stability and.

以水煎煮法作为提取方法，乙醚作为萃取溶剂，以高效液相色谱作为含量检测的手段，以甲醇-0。 3 %二乙胺(73∶27)作为流动相，检测波长242nm，依利特填料：Hypersil BOS C18 5μm 尺寸：4。 6 mm ×250 mm ，结果：标准曲线基本呈线性，精密度，稳定性和准确度良好。

In this paper, kinetics and mechanism of oxidation of dihydric alcohols、 ethylene glycol monoethyl ether 、 amino acids by Ag in alkaline medium were studied by spectrophotometry.

本文用分光光度法研究了在碱性介质中，二羟基二合银配离子氧化二元醇、乙二醇独乙醚和天冬氨酸的反应动力学及机理。

The crystallinity of soft segments of polytetramethylene ether glycol-based segmented copolymers was investigated by infrared spectroscopy and dilatometry.

本文使用虹外光谱及膨胀计等方法，对聚四亚甲基醚二醇类多嵌段共聚物的软链段结晶性进行了研究。

According to the structure and synthesis character of the geminal dinitro energetic plasticizers,the current situation about the synthesis,the property and application of geminal dinitro aldehyde acetals,esters and ether energetic plasticizers is summarized with 21 references.

从偕二硝基含能增塑剂的结构和合成特点出发，综述了偕二硝基缩醛类、酯类及醚类等含能增塑剂的合成、性能及应用研究现状。

The epoxide-terminated oligomer having ether mesogenic unit wassynthesized for the first time by reacting the diphenol with epichlorohydrin. Theepoxy equivalent increased as the elongation of reaction time or the decrease of theinitial ratio of diphenol and epichlorohydrin, but effect of the reaction time wassmaller than that of the initial ratio.

首次采用直接环氧化的方法合成了含酯类液晶基元的环氧结构预聚物，环氧化反应中反应配比和反应时间会影响产物的环氧当量；缩小反应配比或延长反应时间会使产物的环氧当量增大，反应时间对产物环氧当量的影响较小。5。

One new solvent free impregnating resin based on unsaturated polyester with modified diphenylene ether is prepared.

讨论了促进剂和挥发分抑制剂对无溶剂浸渍漆性能的影响，以及促进机理和抑制机理。

One new solvent free impregnating resin based on unsaturated polyester with modified diphenylene ether is prepared.

以改性二苯醚树脂为原料，合成了一种新颖不饱和聚酯型无溶剂浸渍绝缘漆。

This paper introduces the RH-2 H solventless impregnating varnish based on diphenylene ether with polybenzoxazine and unsaturated polyester.

本文介绍了一种以聚苯并噁嗪和不饱和聚酯来改性甲氧基二苯醚树脂合成了RH-2H级无溶剂浸渍漆。

However, we measured the vapour pressures of dipropyl ether (1) and 1-propyl alcohol (2) up to about the normal boiling point of the respective pure components, which are lower than the 2-ethoxyethanol (3) boiling point.

然而我们测得二丙醚(1)和1－丙醇(2)的蒸汽压分别达到了各自正常情况下的沸点，这比2-乙氧基乙醇(3)的沸点要低的多。

So, to avoid excessive extrapolations of the Antoine equation for the two more volatile components (dipropyl ether and1-propyl alcohol), we have decided to use in this work other equations to estimate these vapour pressures which are applicable in a larger temperature range.

因此，为了避免安托万方程对这两种挥发性更强的成分(二丙醚和1－丙醇)的过度计算，我们决定在本工作中用其他的适用于更大温度区间的方程来估计它们的蒸汽压。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。