岩石表层 meaning in English

mantle of rock

Radar that can show areas under the surface of ice and rocks also will be used
能够探测到冰和岩石表层之下区域的雷达也会派上用场。
Ecological characteristics of pogonatherum paniceum ( lam . ) hack . indicated that the transpiration was reduced by its small leaf area , and inner rock water can also be up taken because of its strong roots system . therefore , it could grow on rock surface and rock aperture
金发草生态特征分析表明，其叶片面积较小，减少了叶的蒸腾，降低水分的散失；根系发达、根厚而平展，可在岩石表面或岩石缝隙生长，根系可吸收岩石表层和缝隙中的水分，对干旱具有较强适应能力。