基本解释阀瓣式止回阀；翻板止回阀英汉例句双语例句Lift check valve with a spring load can withstand light valve flap , flap valve lift is not high.升降式止回阀使用一个可承受弹簧载荷的轻量阀瓣，阀瓣的升程不高。flap check valve更多例句词组短语短语single -flap check valve 单舌止回阀flap check valve更多词组专业释义化学翻板止回阀经济学阀瓣式止回阀