Warning: file_put_contents(): Only 0 of 4912 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 screwed nipple例句_screwed nipple英汉例句_screwed nipple双解例句_沉淀汉英词典
When the nut is screwed to the valve threads, it pulls the nipple into the valve outlet compressing the washer between the two beads. 当螺母拧到阀门螺纹上时，它把管接口推进阀门排气口，压缩在两个垫珠之间的垫圈。 www.airproducts.com.cn