The research on the quiescent foreshock is of great theoretical and practical significance.
寂静地震的研究具有重要的理论与实际意义。
Sometimes there are foreshocks, but there is nothing about a foreshock that distinguishes it from any other earthquake, so they「re not very useful for prediction.
有时会发生前震,但我们并不能区分前震和其他地震,所以它们对于预测地震并不是很有用。
On March 11, when the first foreshock struck, my colleague Jeffrey Lewis and I were having lunch with senior industry officials at Japan」s controversial Rokkasho Reprocessing Plant.