基本解释坡麓同根派生 footslope相关词英汉例句Keywords northern footslope of Jishan;soure bed;silicated broken zone;K-enriched granite;metamorphic greenstone; 箕山北麓;矿源层;硅化破碎带;富钾花岗岩;变质绿岩;footslope更多例句