Fully closed crust and the ventilation system, to ensure of good working environment.
超声波清洗机全封闭外壳与抽风系统，确保良好工作环境。
Fully closed crust the ventilation system, to ensure of good working environment.
超声波清洗机全封闭外壳与抽风系统，确保良好工作环境。
As the system responds to control, it can position the valve anywhere from closed to fully open.
在干蒸汽加湿系统对控制作出响应时，可以把调节执行器置于从关闭到全开的任何位置上。
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