trip- in operation的用法和樣例：
例句
- Perhaps there will be a short trip to test the possibility of a blowout-in case the will is acting up.
當井的情況不好時，也許要進行為時較短的起下鑽作業來試驗井噴的可能性。 - Jigs should be designed so that the pilot enters the bushing before the reamer enters the workpiece, and remains piloted until the reaming operation is completed.
鑽模應該設計成在絞刀進入工作部件之前先讓導向器進入軸襯，而且在整個挖鑽作業完成前需保證導向器的運作。
