a colorless flammable gas used chiefly in welding and in organic synthesis
双语例句
1. Introduction to the Alkyne Triple Bond.
炔烃三键介绍。
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2. The nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.
亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。
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3. The computation indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.
计算表明，硅炔与氢分子加成反应可生成稳定的甲硅烷基硅烯。
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4. A new test method, in which alkyne impurity content in 1, 3-butadiene is determined by a capillary gas chromatograph, was introduced.
介绍了一种毛细管气相色谱法测定1,3 -丁二烯中炔烃杂质含量的新试验方法。
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5. This type of reaction has signicant advantages, the alkyne proceeds the coupling reaction with the halogen atom as the leaving group.
卤原子作为炔烃三键活化基团和定位基，炔烃三键发生亲电加成反应；
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6. This paper reports the route of synthesis multisubstituted alkenes by addition reaction of alkyne zirconalkylation with zirconocene complexes.
本文报道了锆烯络合物对炔烃的烷基化加成，合成多取代烯烃，产率较高。
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7. This part mainly focused on the synthesis of propargylic alcohols in many methods including metal acetylides, terminal alkyne derivatives and the direct alkynyl C-H activation.
通过金属炔化物、末端炔烃衍生物和炔基碳氢活化等方法来合成炔丙醇。
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8. Acetylene (ethyne) Simplest alkyne, C2H2. A colourless, flammable, explosive gas, it is used as a fuel in welding and cutting metals and as a raw material for many organic compounds and plastics.
9. Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes. the nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.
文摘：综述了近几年钌亚乙烯基络合物中间体-碳的亲核反应。亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。
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10. Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes. the nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.
文摘：综述了近几年钌亚乙烯基络合物中间体-碳的亲核反应。亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。
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用作名词 (n.)
The condition of microamount alkyne determined is studied by spectrophotometry was studied and the content of alkyne in semi water gas was measured.The results are satisfatory. 本文研究了利用分光光度法测定炔烃条件，并实测了半水煤气中炔烃，结果令人满意。
The condition of microamount alkyne determined is studied by spectrophotometry was studied and the content of alkyne in semi water gas was measured.The results are satisfatory. 本文研究了利用分光光度法测定炔烃条件，并实测了半水煤气中炔烃，结果令人满意。
