gas ballast rotary pump的意思|示意

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气碴旋转泵

气镇旋转泵 ... 鲁特旋转泵 root rotary pump 气镇旋转泵 gas ballast rotary pump 刮板式旋转泵 vane type rotary pump ...

载气旋转泵 ... gas ballast agendary pump 气镇旋转泵 gas ballast rotary pump 气镇旋转泵 ; 载气旋转泵 ballast fire pump running 压载 ...