短語詞組短語rotary y vane type pump 鏇轉(zhuǎn)式葉片泵vane type rotary pump 刮板式鏇轉(zhuǎn)泵swing vane type rotary pump 搖葉式廻轉(zhuǎn)泵2X -type rotary vane vacuum pump X型鏇片式真空泵 返回 rotary vane type pump