pneumatic film flap valve的意思|示意
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气动薄膜瓣阀
pneumatic film flap valve的网络常见释义
气动薄膜瓣阀 ... pneumatic equipment 气动设备 pneumatic film flap valve 气动薄膜瓣阀 pneumatic fire detecting system 气动火警探测系统 ...
气动薄膜蝶阀 ... 水量调节阀 water regulating valve 气动薄膜蝶阀 pneumatic film flap valve 出液阀 delivery valve ...