[化] 主链

trunk chain的用法和样例:

例句

  1. Silanes consist of a chain of silicon atoms covalently bound to hydrogen atoms.构成硅烷烃的是一条硅原子链接形成的主链和以共价键链接在主链上的氢原子。
  2. The effects of chain flexibility and tacticity on the glass transition of PP have also been investigated.并分析了聚丙烯主链柔顺性和立构规整度对高分子玻璃化转变的影响。

发表于:2018-11-29 / 阅读(133) / 评论(0) 分类 电信英语

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发表于:2018-12-10 / 阅读(56) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

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发表于:2018-12-10 / 阅读(56) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

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发表于:2018-12-10 / 阅读(61) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

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发表于:2018-12-31 / 阅读(132) / 评论(0) 分类 牛津阅读树ORTMP3(1-11级)

038 The Flying Trunk There once was a rich merchant. He had a son who didn't want to do anything except play and waste money. The rich merchant died and left his money to his son, but he wasted it and soon, he had nothing left in his pocket. The Flyi

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Got a 69 Camaro with a Ram Jet 502 I could win the pole at Bristol baby But Im ridin round with you Bored as hell we might as well Burn this tank of gas Cause if were goin nowhere girl Lets go nowhere fast Like theres moonshine in the trunk And blue

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