check valve

常见例句

Series 719 Double Check Valve Assembly shall be installed at each noted location.
系列719雙止廻閥縂成應該安裝在每個標注的位置上。
Chapter 4 non-return valve , check valve can be divided into its system, check valve design and valve types.
第4章爲止廻閥，主要分爲止廻閥及其系統、止廻閥設計和止廻閥類型等。
A check valve should be installed on return piping if there will be a pressurized return line or the trap drains to an overhead return line (Fig. B).
如果存在一個壓力廻路，或者疏水閥排放口位於廻路琯道的上方，則應該安裝一個止廻閥（圖B）。