...我觉得经常听抒情的音乐可以陶冶情操 ? So I think often listen to lyrical music can mold character 放气阀 ? venting valve、 今年雨水充沛，结果农业大丰收 ? Plenty of rain and agricultural harvests this year results ..
The use of these technologies allows the valve to be simpler, smaller and smarter than traditional venting systems.
这项技术的使用使得阀体变得简单小巧。
2
This valve is widely used in the pipe system such as venting and environment protection in building material, glass, mining, power, light industry and papermaking departments.
角行程电动蝶阀，普遍适用于建材、玻璃、矿山、电力、轻工、造纸等行业的通风、环保工程等管道系统中。
3
The utility model discloses a novel explosion venting dust cleaner which comprises a bag chamber. A pressure release valve is arranged under the bag chamber.