... single-engined aircraft 单策念头飞机 single-entry pump 单吸泵 single-flight cutter head 单翼切土螺钻 ...
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single entry pump 单吸泵
single entry pump coupling 单吸泵联轴器
single-entry pump single-suction pump 单吸泵
single-entry centrifugal pump 单缸泵
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