基本解釋[機(jī)械工程]蝶式止回閥英漢例句雙語例句Divided by the structure of a non-return valve can be divided into the H72 non-return valve on the jack-up folder, and Swing Check Valve Slow Close ZHYH46EJ micro butterfly check valve in three.止回閥按結(jié)構(gòu)劃分，可分為H72對(duì)夾升降式止回閥、旋啟式止回閥和ZHYH46EJ微阻緩閉蝶形止回閥三種。butterfly swing check valve更多例句專業(yè)釋義機(jī)械工程蝶式止回閥