英语释义

1. a bivalent saturated aliphatic radical (such as ethylene) regarded as derived from an alkene by opening of the double bond or from an alkane by removal of two hydrogen atoms from different carbon atoms

2. alkene

片语

alkylene polysulfide翻译

alkylene e亚烃基

alkylene processalkylene技术

alkylene halohydrin翻译

alkylene ligand烷基配体

alkylene diamine烷撑二胺

alkylene oxazepine亚烷基氧氮杂环瘐烷

Alkylene bisphenol烯基双酚

英汉例句

• a catalytic process for preparing a monoalkylene glycol from a corresponding alkylene oxide utilizing an ion exchange resin and a reactor in which an upflow process is used is provided.

  本发明提供了一种用于从相应的环氧烷制备单烷撑二醇的催化方法，其中了利用离子交换树脂和其中使用上流过程的反应器。

• the boron compound and iodine source are combined with reactants of a fluoroalcohol and an alkylene oxide in the presence of a base.

  所述含硼化合物和碘源在堿的存在下与氟代醇反应物和环氧烷烃反应物混合。

• multi-hydroxyl polymer, cxc-1, as an anti-sloughing agent for water base drilling fluids, is a yellowish liquid and is prepared by polymerization of alkylene oxides and polyhydroxylated compounds.

  多羟基聚合物防塌剂cxc-1是以环氧化物及多羟基化合物共聚而成的聚合物防塌剂，为淡黄色黏稠液体。

• the invention discloses a high-activity catalyst which catalyzing and activating carbon dioxide to perform the copolymerization reaction with alkylene oxide to synthesize polycarbonate.

  本发明公开了一种通过催化活化二氧化碳与环氧烷烃共聚反应合成聚碳酸酯的高活性催化剂。

• the synthesis of the first two arylenealkyne conjugated macrocycles containing long alkylene bridge via glaser coupling of template-directed tetraacetylenes was reported.

  采用模板导向法高产率地合成了两个含长链亚烷基桥的芳炔类共轭大环。

• the alkylene oxide adducts are also useful as the raw material of various anionic surfactants and can give nondiscolored derivatives.

  该环氧烷烃加成物作为各种阴离子表面活性 剂的原料有用，并且在形成衍生物时也不会着色。