• 1. s waves: S波
• 2. s-waves: S波
• 3. p-and s-waves field separation: P波和S波波场分离

更多释义

• 1.Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.
  由于 P 波和 S 波以不同但相当恒定的速度传播，它们到达的间隔与到震源或初始破裂点的距离成比例地增加。
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• 2.Both P and S waves refract or reflect at points where layers of differing physical properties meet.
  和S波都在具有不同物理性质的地层相遇处折射或者反射。
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• 3.And researchers found that P waves travel through both liquids and solids while s waves travel only through solid matter.
  研究者发现P波可以同时穿过液体和固体，但是S波只能穿透固体。
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