单词：low-velocity layer
low-velocity layer的用法和样例：
例句
- Such low velocities are usually seen only near the surface in a zone called the weathered layer or the low-velocity layer.这样低的速度通常只在地表附近称为风化层或低速层的地带中见到。
- The researchers also found that overlying this high-seismic-velocity layer is a low-velocity zone that is much more apparent in their work than in past studies.他们同时也发现上覆于该高速层的是比过去发表的结果更明显的低速层。
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