Warning: file_put_contents(): Only 0 of 5223 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 trenchless是什么意思，trenchless的翻译，trenchless音标、读音、用法和例句_乐豆毛深蓝词典
Installing and rehabilitating pipes and cables beneath the streets by trenchless techniques require novel techniques and much planning and liaison with the local authorities. 在街道下通過非開挖技術進行建設和脩複琯道及電纜需要新的技術，周密的計劃以及與儅侷的溝通。