Warning: file_put_contents(): Only 0 of 6390 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/oclz.com/index.php on line 55 hydrant valve例句_hydrant valve英汉例句_hydrant valve双解例句_菜篮子兴趣思朗文词典
Contractors are not allowed to use any kinds of installations as water , gas , valve , hydrant and electronic switches etc. without permission . 搭建方不准擅自动用展馆的各种工程设施（指水、气、阀门、消火栓、电器开关等） 。