自从最近几年一些洋中的石油钻机惊人坍塌以来,工程师们已经正在试图学会如何避免钻机可能坍塌的洋底不稳定地区。新汉普夏(Nem Hampshire)大学的彼德罗、德阿尔巴(Pedro Dealba)认为他已经发现了一种判别不安全海底沉积物的方法。钻机有时坍塌是因为在地震或强波的作 Engineers have been trying to learn how to avoid the unstable bottom of the ocean where rigs could collapse, as some of the mid-ocean oil rigs collapsed in recent years. Pedro Dealba of New Hampshire University thinks he has discovered a way to tell unsafe seafloor sediments. Rigs sometimes collapse because of earthquakes or strong waves