查询词典 polyethylene

In the presence of the phase transfer catalysts such as tetramethylammonium bromide, tetraethylammonium bromide or polyethylene glycol(MW 400 and 6,000),lithium hydroxide is the best alkali among lithium hydroxide ,sodium hydroxide and potassium hydroxide.

研究表明在溴化四甲基铵、溴化四乙基铵、聚乙二醇（分子量为6，000）和聚乙二醇（分子量为400）相转移催化体系中，氢氧化锂最好，氢氧化钾次之，氢氧化钠最次。

The comparison between three stationary phases of different hydrophobicity, such as polyethylene glycol, tetramethylene glycol and phenyl, was made.

提示1：译典可返回英文单词的不同语法变体，如果你不需要变体，请在查询词前加引号。

The following plastic wastes, i.e., polyvinylchloride cable waste, polyethylene cable waste, used "Trabant" car bodies (polyester- and phenolic resins) were mixed with old motor oil, industrial waste oil, and chlorobenzene from waste oil refining processes, and subsequently subjected, in autoclaves, totemperatures up to 500oC and pressures of 20 MPa using disposable catalyst system of slurry phase hydrogenation.

下面的塑料废物，比如聚氟乙烯线状废物，聚乙烯线状废物，使用&随体&汽车车身与旧机油、工业废油和氯苯从废油精炼出来，随后在小孔中使用泥浆阶段加氢的一次性相位加氢系统加热到500摄氏度和20M帕的压强。

Addition of Polyethylene Glycol 2000 (PEG 2000) will make the film in the porous shape,which will affect transmittancy of the film.

若加入PEG 2000可使薄膜呈多孔状，并影响薄膜的透光率。

The bromo-polyethylenegylcol-monomethacrylate was synthesized by two steps. Firstly, methylacrylic acid was esterified with polyethylene glycol (PEG, M=200, 400) to give polyethyleneglycol-monomethacrylate Secondly, treatment of PEG-MA with phosphorus tribromide gave the aim product.

以聚乙二醉（M分别为200，400）和甲基丙烯酸进行单酯化反应，所得单酯再与三溴化磷进行溴化反应合成了一种新的两端具有功能团的不饱和溴化物，即溴代甲基丙烯酸单聚乙二醇酯。

The invention relates to a pipeline polyurea outer anticorrosive coating and the making method thereof, making heated prepolymerization reaction on dibenzo-methane diisocyanate, carbodiimide diisocyanate, polyether binary alcohol and polyether trihydric alcohol to prepare prepolymer solution A, and making end amino polyethylene oxide ether, dimethyl sulfur-based toluene diamine, diethyl diamine, iso-propyl titanate solution, polyacrylate, carbon black, titanium dioxide and lightweight calcium carbonate into solution B, and as using, respectively heating the solutions A and B to 65 deg.C and then mixing them, then quickly spraying and curing to form a coat.

本发明涉及一种管道用聚脲外防腐涂料及制造方法，由二苯基甲烷二异氰酸酯、碳化二亚胺化二异氰酸酯、聚醚二元醇和聚醚三元醇通过加热预聚反应制成预聚物的A液、由端氨基聚氧化乙烯醚、二甲硫基甲苯二胺、二乙基甲苯二胺、钛酸异丙酯溶液、聚丙烯酸酯溶液、碳黑、钛白粉和轻质碳酸钙配制而成的B液组成，使用时将A液和B液分别加热至65℃后混合，然后快速喷涂固化形成涂层。

In this work,the non\|aqueous carbonyl nickel slips were prepared by ball\|milling using Cyclohexanone\|butyl alcohol,Glycerol trioleate,Poly\|vinyl\|butyl and polyethylene glycol as the solvent,dispersant,binder and plasticizer,respectively.

本文以环己酮丁醇为溶剂，三油酸甘油酯为分散剂，以聚乙烯醇缩丁醛为粘结剂，聚乙烯乙二醇为增塑剂，通过球磨工艺制备了非水基羰基镍粉浆料。

Since new fiber composite polyethylene materials are contemplated for use by gas industry, a major challenge is to perform a computational analysis for the cracked and uncracked pipes.

以聚乙烯材料为基体，应用玻璃纤维随机或定向分布，增加材料的强度、刚度和断裂韧性，是发展高压大口径复合材料天然气管道的需要。

Since new fiber composite polyethylene materials are contemplated for use by gas industry, a major challenge is to perform a computational analysis for the cracked and uncracked pipes. This is accomplished using a unique finite element code PFRAC.

以聚乙烯材料为基体，应用玻璃纤维随机或定向分布，增加材料的强度、刚度和断裂韧性，是发展高压大口径复合材料天然气管道的需要。

When TA or Diethylene glycol terephthalate were applied to common metabolism, F4 and p.ch were used to degrade uncrystalline Polyethylene terephthalate film, which was prepared by resolving PET fiber with organic solvent, at temperature of 30℃, shaking frequency 140 r/min in HZQ-C air bath oscillator from one month to three months, and then the scanning electron microscope was applied to observe faces of PET film.

在菌株最佳生长条件下，分别以TA和DTP作为共同代谢基质，研究F4和p.ch菌株降解PET膜。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。