vacuum
【电学】真空管,在加热器和放射性原料之间的绝热层
vacuum tube, insulating layer located between heater and emissive material
暂无补充释义。
vacuum tube, insulating layer located between heater and emissive material
暂无补充释义。
vacuum
vacuum suction massagelliut
vacuum liquid chromatography
vacuum clarifier
ionisation vacuum gauge
vacuum blowing and pressing machine
vacuum bag sealer
vacuum flash vaporizer