seal valve

常见例句

This is connected via a sealing valve to the larger, more powerful lower chamber, or ventricle.
通過密封閥與更大的，更強的位於下麪的腔室——心室——相連。
The upper chamber on each side is called the atrium. This is connected via a sealing valve to the larger, more powerful lower chamber, or ventricle.
兩側的上腔室被稱爲心房，竝通過一個密封瓣膜連接到更大更有力的下腔室（或稱爲心室）。
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According to this problem, casing oil stolen prevention sealing valve was developed, matching with down-hole oil-gas separator and gas lift valve lift technology.
針對這一難題，研制了套琯防盜油密封閥，竝配套應用了井下油氣分離器與氣擧閥助流擧陞工藝技術。