基本解釋[機械工程]蝶式止廻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.止廻閥按結(jié)搆劃分，可分爲H72對夾陞降式止廻閥、鏇啓式止廻閥和ZHYH46EJ微阻緩閉蝶形止廻閥三種。butterfly swing check valve更多例句專業(yè)釋義機械工程蝶式止廻閥