Hanoi reacted by sending boats to disrupt the drilling operations, leading to clashes at sea.

河内派遣船只扰乱钻探工作，导致海上冲突。

The problem is less serious in Canada, where most oil production comes from oil sands mining instead of traditional drilling operations.

加拿大这一问题并不严重，因为该国的大部分石油开采不是传统的钻井作业，而是来自油砂开采。

Many offshore oil rig drilling operations dot the African coast here.

许多海上石油钻井平台的钻探作业点缀于此的非洲海岸。

For this reason, Fries told the Live Science website, scientists decided to launch the " first intentional search for meteorites from the ocean" . Until the latest research, scientists had only accidentally discovered a small number of meteorites from drilling operations.

为此，弗里斯向《生活科学》网说道，科学家们决定发起" 首次特意的搜寻海洋中的陨石。" 在最新的研究之前，科学家们只在钻井作业中偶然发现过少量的陨石。