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LS series wet roots vacuum pump is a rough vacuum pumping equipment.
LS型直排大气湿式罗茨真空泵属粗真空获得设备.
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Sand production of an oil well does great harm to the surface and downhole pumping equipment.
油井出砂对地面设备和井下设备带来极大的危害.
Oxygen Concentrator , Breast Pump, Ultrasonic Nebuliser, Compressor Nebuliser, Oxygen Mask Sets Pumps and Pumping Equipment.
采购产品氧浓缩器,胸部泵, 超声波, 压缩物, 氧面具设定泵和抽泵设备.
英汉翻译词典包含4367426条英汉汉英翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习的有利工具。