... 转动风斗机械;风斗转柄:ventilator turning gear 转动的:rotating; rotational 转动导管螺旋桨:duckpeller ...
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那时他听到吉尔的钥匙在门锁里转动的声音。
At that moment he heard Gill's key turning in the lock of the door.
把它想象成一个不能再转动的音量旋钮。
Think of it as a volume knob that can't be turned any further.
沿中轴转动的窗子容易擦洗。
So it's very important to be keeping in mind that any time you see a double bond, you have a pi bond there, so you're not going to see any rotation around the bond axis.
所以你们要记住,任何时候你们看到一个双键,这里面有π键,你们不会看到关于键轴的任何转动。
So really, you can not ever rotate a double bond, it makes your molecule very rigid.
实际上,你不能转动一个双键,它使得你的分子很坚固。
Poetry is a response to the daily necessity of getting the world right."
诗歌是对世界正确转动的琐事的反应“
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