1、
We are specialized in product series of smoke extractors, gas rings, heaters and electric fans etc.
专业制造生产吸油烟机、燃气灶、消毒柜、取暖器等系列产品。
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2、
We are specialized in product series of smoke extractors, gas rings , heaters and electric fans etc.
专业制造生产吸油烟机、燃气灶 、 消毒柜 、 取暖器等系列产品.
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3、
4、
我的一个梦彻底搅了，心里突然生起气来：那你说怎么办吧，是我还你一个金戒指还是我赔点钱给你？
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5、
the sealing rings are pressed against the cylinder wall by the differential gas pressure.
通过气压差将密封圈压入气缸壁。
provided by jukuu
6、
study on the eccentricity and attitude angle of journal gas bearing with rubber rings support
橡胶圈加稳径向气体轴承偏心率和偏位角的特性研究
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