vacuum

His presence should fill the power vacuum that has been developing over the past few days..他的出现应该能填补过去几天中形成的权力空缺。

vacuum pump,[机]真空泵

in a vacuum,似在真空中

high vacuum,高度真空，高真空

vacuum distillation,真空蒸馏

vacuum cleaner,吸尘器；真空吸尘器；真空清洁器

vacuum system,真空系统

vacuum degree,真空度

vacuum drying,真空干燥

vacuum packaging,真空包装

vacuum furnace,真空炉；退火炉

vacuum filter,真空滤器

vacuum tube,真空管；电子管

vacuum packing,真空包装

vacuum circuit breaker,真空断路器

vacuum equipment,真空设备

vacuum chamber,真空室；压力室

vacuum evaporation,真空蒸发；真空蒸镀；真空涂膜

vacuum heat treatment,真空热处理；化学热处理

vacuum interrupter,真空断续器；真空隔离开关

vacuum forming,真空成型