Thursday, September 15, 2022
Sunday, May 5, 2024
Sunday, September 11, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
污水在管内是按重力方式流动,其水流部分的高度与管径之比称为()。...
Thursday, September 15, 2022
Sunday, April 14, 2024
Thursday, September 15, 2022
Friday, March 31, 2023
雨水管道和合流管道自清流速采用每秒()m。A、0.75B、0.9C、1.4D、0.5...
Sunday, July 2, 2023
因硫化氢而造成的管道腐蚀通常发生在管道的()。A、底部B、顶部C、两侧D、四周...
Sunday, June 25, 2023
Thursday, September 15, 2022
能改善和易性、降低水灰比和用水量,节约水泥,提高强度的水泥混凝土外加剂是()。A、减水剂B、早强剂C、促凝剂D、加气剂...
Wednesday, February 1, 2023
Sunday, March 12, 2023
Thursday, September 15, 2022
普通土的最初可松性系数()。A、1.20~1.30B、1.08~1.17C、1.14~1.28D、1.24~1.3...
Wednesday, January 11, 2023
Thursday, September 15, 2022
Sunday, September 11, 2022
排出管与立管的连接宜采用二个45°弯头或用曲率半径等于或大于四倍管径的90°弯头连接。...
Friday, November 3, 2023