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关注：1
2013-05-23 12:21
求翻译：Connect the tubing to the 1,3-butadiene cylinder and crack the valve on this cylinder so that there is a constant flow of vapors from the end of the tubing which must be at room是什么意思？ 待解决
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- 离问题结束还有
Connect the tubing to the 1,3-butadiene cylinder and crack the valve on this cylinder so that there is a constant flow of vapors from the end of the tubing which must be at room
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