Thiết kế kênh bê tông mặt cắt ướt hình thang

Xem thêm:

http://vnbuilding.net/showthread.php?t=2319
https://plus.google.com/u/0/b/116840...67071653260926
https://plus.google.com/u/0/b/116840...61943695/posts
https://plus.google.com/u/0/116978086093574297275/posts