Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/911bed1b3c6b0166628e013e4fc369a0.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 test cock例句_test cock英汉例句_test cock双解例句_94生活常识网有道词典
If it slowly drops and does not run out through Test Cock No. 2, then No. 2 ball valve has a small leak, but No. 1 check valve is tight. 如果水柱慢慢下降，并且没有从测试旋塞2号流出，则2号球阀有点泄漏，但是1号止回阀密封紧密。