Wednesday, September 21, 2022
闸门操作运用的基本要求规定:关闭或减少过闸流量时,应避免下游河道水位降落过慢。...
Thursday, September 22, 2022
Sunday, September 18, 2022
单选题钢丝绳的清洁严禁使用金属刮刀清洁钢丝绳,以免损伤钢丝绳的()。A 镀锌层B 润滑层C 绳芯D 钢丝绳...
Thursday, July 27, 2023
Thursday, September 15, 2022
停机时将承船厢停放在预定位置后,再行断开所有的电源,电源分闸操作和合闸操作次序相同。...
Wednesday, September 21, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 15, 2022
螺杆是受压受拉杆件,需要下压力迫使闸门下降时应计算压杆的()。...
Thursday, September 22, 2022
判断题闸门门体疏通排水孔的周期:每月不少于两次,若遇大暴雨或连阴雨,应在雨停止后加一次。A 对B 错...
Sunday, May 12, 2024
钢丝绳的破断拉力与其允许拉力之比就是钢丝绳的安全系数。...
Monday, September 19, 2022
Monday, September 19, 2022
Thursday, September 22, 2022
把钢丝绳()规定要求之内既可延长钢丝绳的使用寿命,又可以保证机构运行平稳。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022