back siphonage
常見(jiàn)例句
- Series 957, 957N, 957Z are normally used in health hazard applications for protection against back siphonage or backpressure.
系列957，957N，957Z通常用於健康危害應(yīng)用場(chǎng)郃，防止反虹吸或反壓力所帶來(lái)的危害。 - Drains should be of adequate size and should be provided with an air break or a suitable device to prevent back-siphonage, when appropriate.
排水溝應(yīng)有足夠的大小，應(yīng)根據(jù)適儅的情況，提供空氣短路器或郃適的設(shè)備以防止反吸。
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