HreeCOCA²⁵⁴³³⁷⁺⁶BNC¹⁷³⁹⁹⁵⁺² 基本例句 里¹⁰⁰ It is concluded that the half-weathered basalts have not distinct REE fractionation and strong weathered basalts had HREE loss in the process of the basalts weathered to form smectite family minerals. 研究表明玄武岩首先风化形成蒙皂石族粘土矿物，在此过程中稀土元素没有明显的分馏作用，强风化的玄武岩重稀土元素强烈亏损； cnki