Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/585500ed15ae5ff669a4f95a07648881.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 valve mechanism cover是什么意思，valve mechanism cover的翻译，valve mechanism cover音标、读音、用法和例句_欧米惠必应词典
And a limiting retaining mechanism is arranged between the outer cover and the valve cover, which achieves multiple guarding against theft. 并且外罩和阀盖之间设置有限位止退机构，实现多重防盗。 ip.com