The entire apparatus must, of course, be evacuated.

当然, 整个设备必须抽成真空.

辞典例句

Lamination may appear between glass wool when are products are vacuum packed.

当产品抽成真空包装时,玻璃棉之间会产生分层现象.

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Initially, the large chamber was evacuated, which steam was added to the desired pressure and temperature.

最初将大腔抽成真空, 然后加入蒸汽直至理想的压力和温度.

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