钩螺栓钩头位置应正确,()钩头面积与钢梁钩紧(优良标准)。...
Thursday, September 22, 2022
喷砂嘴或喷射嘴不准对着()、车、船;不准带风、带砂修理喷砂设备和更换零件。...
Thursday, September 22, 2022
当横波入射为35°~55°之间,端角横波声压反射率为()。...
Thursday, September 22, 2022
Thursday, September 15, 2022
Thursday, September 22, 2022
当横波入射为35°~55°之间,端角横波声压反射率为()。...
Thursday, September 22, 2022
D09-32捣固车作业驱动减速箱为一级圆柱齿轮减速,其速比为()。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Wednesday, September 21, 2022
Sunday, September 18, 2022
Thursday, September 22, 2022
Tuesday, September 20, 2022
护锥冲毁加固时,如土中含水量大,可在桥头路基旁打木桩防护。...
Tuesday, August 9, 2022
Friday, September 16, 2022
为防止模板漏浆,拼合板板缝超过5mm则必须用小木条、腻子或油灰进行填补。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Vmax>160km/h的正线道岔轨距临时补修允许偏差管理值+5、-3mm。...
Tuesday, September 20, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022