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vacuum n.真空,空间,真空吸尘器a....vacuum-tube 真空管...vacuum pot 真空锅...vacuum(circuit)breaker 真空断路器...vacuum-plate 真空腔牙托板...vacuum-sealed process 真空造模法,V造模法...vacuum-pumping 真空排气...vacuum-packed a.真空包装的...vacuum-chamber 真空腔...absolute vacuum 绝对真空...vacuum metallizing 真空金属蒸涂法...vacuum melting furnace 真空熔炉...vacuum ultraviolet 真空紫外;真空紫外区...vacuum valve 真空阀...vacuum tray drier 真空盘架干燥器...vacuum-tube clipping circuit 电子管截波电路...vacuum vapor deposition method 真空蒸发法...vacuum relief valve 真空安全阀;真空解除阀;真空泄...vacuum tube detector 真空管检波器...packaged vacuum unit 小型真空设备...vacuum release valve 真空泄漏阀...
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