Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/bd19da872eab74b95c906cafc4d32920.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 bearing sleeve cover例句_bearing sleeve cover英汉例句_bearing sleeve cover双解例句_欧米惠必应词典
The main parts of pump are pump casing, pump cover, impeller, shaft, sealing ring, shaft sleeve, bearing and shaft seal etc. 泵主要由泵体、泵盖、叶轮、轴、密封环、轴套、轴承、轴封等零件组成。 cstegzb.web.3150vip.cn