Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/ea616bbabd64308768711e68d1da504a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 siphon irrigation例句_siphon irrigation英汉例句_siphon irrigation双解例句_94生活常识网有道词典
As a new type of drainage and irrigation of the dock, siphon has the advantages of simple structure, protection against sand and water and rapid set-off. 虹吸管是作为船坞灌水排水的一种新型式，具有结构简单、防冰防沙、断流迅速的优点。