WZI型外加热式真空蒸发器是一种在真空系统下操作的自然循环型蒸发器。
WZI type external heating vacuum evaporator is a kind of natural circulating evaporator operated under vacuum system.
美国环境保护署敦促承建商对1978年前建成的房屋进行铅安全的整改工作,把正在施工的房间隔离开,同时使用真空蒸发器和面具防止铅尘弥漫。
The U. S. Environmental Protection Agency obliges contractors to do lead-safe renovations on pre-1978 homes, isolating rooms where work is under way and using special vacuums and masks for dust.
美国环境保护署敦促承建商对1978年前建成的房屋进行铅安全的整改工作,把正在施工的房间隔离开,同时使用真空蒸发器和面具防止铅尘弥漫。
The U. S. Environmental Protection Agency obliges contractors to do lead-safe renovations on pre-1978 homes, isolating rooms where work is under way and using special vacuums and masks for dust.
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