Saturday, August 12, 2023
Friday, February 17, 2023
Tuesday, September 13, 2022
Monday, September 12, 2022
问题:延迟火药的延迟时间受井下温度影响,温度越高,延迟时间越()。...
Tuesday, April 18, 2023
问题:修接电缆包扎牙线时,铜丝与缆芯绝缘层之间的低凹部分不必填平。...
Saturday, August 12, 2023
Tuesday, April 18, 2023
问题:装配旁开门打捞井下工具时,电缆放入打捞筒旁门后用螺丝固定旁门。...
Wednesday, October 12, 2022
Tuesday, September 13, 2022
问题:()和化学切割都是用来切割被卡钻杆或套管的一种有效方法。...
Monday, September 12, 2022
Tuesday, September 13, 2022
问题:井漏预防中,减少压力激动,避免造成人为裂缝漏失的方法?...
Wednesday, March 6, 2024
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:打紧电缆卡子下放电缆,()内电缆无下滑,卡子已紧固在电缆上。...
Monday, September 12, 2022
问题:当压力大于压力点火头活塞剪切销的剪切值时,活塞剪断(),向下运动...
Tuesday, September 13, 2022
问题:修接电缆包扎牙线时,一是要均匀缠绕,二是要扎紧。...
Sunday, March 24, 2024
Wednesday, March 6, 2024
Monday, September 12, 2022
Tuesday, September 13, 2022