Second order triangu- lation 二等三角测量
triangu lation 三角剖分
popu-lation density change 人口密度变化
duration of mechanical venti-lation 机械通气时间
If I hadn't told the chief I could read German, I wouldn't have to be doing all this tra lation work.
如果我不告诉头头我能读德文，他也不会叫我干全部的翻译工作啦。
The theoretical plate number "n" of distillation towers is an important data for distil - lation tower design.
化学工程中精馏塔的理论塔板数n是塔器设计的一个重要数据。
Recently much progress has been made for iso- lation and transformation of disease and insect resistance genes .
目前，在抗病虫害基因的分离、转化等方面均取得了令人瞩目的进展。
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