1) spherite
['sfiərait]
球形重矿物;沉积球粒
2) three-dimensional scattering
半球形沉积谷
1.
Analytical solution of three-dimensional scattering and diffraction of plane Rayleigh-waves bya hemispherical alluvial valley with saturated soil deposit;
半球形沉积谷场地对入射平面Rayleigh波的三维散射解析解
4) spherulitic Fe-minerals
球粒状铁质矿物
5) pellet sand
砂级球粒钙质沉积
补充资料:U形谷