Warning: file_put_contents(): Only 0 of 6035 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 levee revetment例句_levee revetment英汉例句_levee revetment双解例句_耀久九英英词典
The technology of casting tetrahedron-like penetrating frames for protecting levee and fixing revetment is a newly developed technology. 抛投四面六边透水框架群是一种新的护堤固岸技术。