题目内容
从茶叶中提取咖啡因实验中,升华时产生烟雾,可能是( )。
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The connecting rod, in essence, is a bar with a bearing at each end, whose purpose is to transmit the piston thrust to the crankshaft.
Rod ratio is rod length to stroke.
Rods can fail for any number of reasons. Installation error is a common one.
Please match the terms in English with their corresponding Chinese meanings.
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