英语网专题频道ech的近义词栏目,提供与ech的近义词相关的英语知识和资讯,希望英语网专题频道ech的近义词栏目能够成为您了解ech的近义词、掌握相关英语知识和资讯的重要窗口。

ech

abbr.echelon 梯形,梯次编队;

英文例句/中文翻译:

  • 1、

    Optimize Reaction Control to Improve ECH Yield

    优化反应控制提高环氧氯丙烷收率

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  • 2、

    Under the catalysis of sodium hydroxide solution, TBA epoxy resin was prepared by stepwise polymerization by use of tetrabromobisphenol A ( TBA) and epichlorohydrin ( ECH).

    TBA与环氧氯丙烷(EHC)在氢氧化钠溶液的作用下,通过逐步聚合得到TBA型环氧树脂;

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  • 3、

    The rare earth coordinated catalytic system was used to catalyze the copolymerization of CO 2 and ECH. Then the aliphatic polycarbonate ECH-CO 2 was synthesized.

    利用稀土络合催化体系催化二氧化碳(CO2)和环氧氯丙烷(ECH)共聚反应,合成出新型高分子材料脂肪族聚碳酸酯(ECHCO2)。

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