low-velocity zone

常見例句

雙語例句

• Pseudo-Rayleigh wave at low frequency (high velocity)can be used for the computation of shear wave attenuation in virgin zone.
  利用低頻偽瑞利波（高速），能很好地估算原狀地層的橫波衰減。
• The lowermost mantle layer is above the core mantle boundary (CMB) and composed of D" region and ultra-low velocity zone (ULVZ)."
  地幔底層由具有高地震波速和高密度的D″區(qū)和超低速帶（ULVZ）組成。
• The most remarkable feature of the upper mantle is the low-velocity zone. as suggested by its name, this is a region in the upper mantle in which there is a decrease in the speed of seismic wave.
  上地幔一個(gè)最顯著的現(xiàn)象就是低速帶，就像這個(gè)詞名所表達(dá)的那樣，在上地幔存在這么一個(gè)區(qū)域，在那里地震波波速會發(fā)生減慢。
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