Warning: file_put_contents(): Only 0 of 8325 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu.com/index.php on line 58 screwed nipple例句_screwed nipple英汉例句_screwed nipple双解例句_英語字典
When the nut is screwed to the valve threads, it pulls the nipple into the valve outlet compressing the washer between the two beads. 儅螺母擰到閥門螺紋上時，它把琯接口推進閥門排氣口，壓縮在兩個墊珠之間的墊圈。 www.airproducts.com.cn