Simonecheck valve是什么意思
的有关信息介绍如下：
check valve[英][tʃek vælv][美][tʃɛk vælv]n.止回阀; 例句:1.Then, secure the second riser to the upper coupling of the check valve with a hoseclamp. 然后用软管夹具把该竖管固定在止回阀顶部的接头上。 2.Check valve keys to ensure that they are installed correctly. 检查气门锁片以确保其安装正确
