软流层 meaning in Chinese

asthenosphere

These anomalies might be due to the temperature variation of subsurface fluid that caused by transmission of long cycle waves through upper mantle or asthenosphere before the earthquake
水温异常出现的原因可能是由于地震前的长周期波通过上地幔或软流层传播，间接地导致了地下流体温度发生了微小的变化。
However , the crust is not a rigid sphere . it is segmented into plates , thousands of kilometers in extent but only about 50 km thick . the plates float on top of a hot and soft layer and this theory is called the
，地壳并不是一个坚硬的球体，而是由一些连绵数千公里，但厚度却只有50公里，漂浮在炽热的软流层上的板块所组成。