问题:用砂浆沿裂缝滴入,缝隙填满后,用铁铲依次塞缝并抹光的处理措施为(...
Sunday, September 11, 2022
问题:马尾松毛虫防治方法:通过营造针阔叶混交林,合理密植,保持林分郁闭...
Friday, September 16, 2022
Friday, September 16, 2022
问题:山坡稳定性评价方法主要有()等人为因素均可促使边坡失稳。...
Friday, September 16, 2022
问题:电动机铭牌上写着温升60℃即是说电动机定子绕组的温度不应超过()...
Friday, September 16, 2022
问题:木屑水泥止水材料是由木屑(即锯末木屑)和水泥加水配制而成,其重量...
Sunday, September 11, 2022
Friday, September 16, 2022
问题:压力钢管的布置形式虽有不同,但在结构上都是由上弯管、斜管(或竖井...
Friday, September 16, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
问题:量水槽为在明槽中设置一缩窄段(喉道),使之发生临界流,并于上游或上、下游特定位置测定水深以求得流量的量水设施。...
Sunday, October 9, 2022
问题:压力钢管的构件有主管、副管、三通管、伸缩节、支座、支承环、加劲环、进人孔、通气管、通气阀、排水管和排水阀等。...
Monday, January 16, 2023
Sunday, September 11, 2022
Friday, September 16, 2022
Friday, September 15, 2023
问题:渠道滑坡变形检测的主要工作有滑坡位移观测、滑坡阻力观测、渠道水位观测。...
Sunday, February 25, 2024
问题:防渗工程措施一般减少渗漏值不应小于()。A、40%~60%B、50%~70%C、50%~80%D、60%~90%...
Friday, April 12, 2024
问题:接地线在日常维护时,要用接地电阻测试仪遥测防雷接地电阻是否在()Ω以下。A、4B、8C、10D、12...
Thursday, November 24, 2022
Sunday, September 11, 2022