butterfly swing check valve

常见例句

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。
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