本实用新型由吸罐、导管、抽气装置、调节阀组成。
The adjustable suction pot comprises a suction pot, a guide tube, an air extracting device and an adjusting valve.
我有的只是偶尔一次干着急的吸一口，从没有过一罐。
A few tantalizing sips was all I had ever had, and certainly never my own bottle.
本文介绍了大型贮罐吸瘪的原因，提出了四种修复方案，并对四种方案作了比较和论证。
This article describes the reasons for shell sinkage or collapse of large-size stor-age tanks and represents four schemes of repair.
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