英语词汇nonreturn flap怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	nonreturn flap
释义	nonreturn flap 简明释义止回瓣网络释义 1 ?止回瓣止回瓣 nonreturn flap 止回阀 [工业] check valve; check-valve mounting bracket; one-way valve; clack valve; clappet (valve); inverted valve;...
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