To facilitate the fishing or recovery operation, the backoff is usually accomplished by applying reverse torque and detonating an explosive charge inside a selected threaded connection.

为进行打捞或回收钻柱，通常的卸开作业总是采用反扭矩，和在所选用的丝扣连接内引爆炸弹。

youdao

The next month, the same group claimed responsibility for detonating an explosive device outside the U.S. Consulate.

CNN: Gunmen open fire on Italian consul's car in Benghazi

He and his brother, Tamerlan, are suspected of detonating two explosive devices at the Boston Marathon race April 15, leaving three dead and more than 175 people wounded.

CNN: SHARE THIS

Word of the October alert was just the latest sign of the concerns U.S. officials have about the possibility al Qaeda or another terrorist network might gain access to a nuclear device -- either a nuclear weapon or a so-called "dirty bomb, " one that contains radioactive material spread by detonating a conventional explosive.

CNN: Nuclear weapon plot deemed not credible