Every living space has a supply airvalve; the bathroom and kitchen also have exhaustair valves.
每个生活空间有一个供应空气阀；厨房和卫生间也有排气空气阀。
2
The cold air in the working chamber can convent if the exhaustvalve on top of the oven is open, the temperature is controlled constant automatically by digital display instrument.
开启箱顶排气阀可使工作室温之冷空气得以对流交换，温度控制采用数字显示仪表自动恒温调节。
3
The reason why the automatic exhaustvalve failed to be used for airexhaust from siphon tube was investigated.