柯林斯英汉双解大词典
ch.
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1.
N-VAR Ch. is a written abbreviation for . chapter的缩写
双语例句原声例句权威例句
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Then the period is ch... the period is changing.
那么周期。,周期在变化。
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Alo on display will be electronic engine control, currently in production to upgrade CH-47 and UH-60 helicopter engine for the U.S. Army and National Guard.
同时展出的还将有发动机控制电子装置，目前正在生产并用于升级美国陆军和国民警卫队的 CH-47 和 UH-60 直升机发动机。
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CH-47s pilots in Iraq were told to fly only at night.
在伊拉克的CH-47飞行员被告知只在夜间飞行。
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A good example of that is CH4, because the CH bond is polar but symmetrically disposed in space.
甲烷就是一个很好的例子，因为极性键是,空间对称的。
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