基本解释上寒武统英汉例句双语例句The ore-bearing bed consists of black rocks from Upper Sinian Series to Lower Cambrian Series.含矿层为上震旦统—下寒武统黑色岩系。upper Cambrian series更多例句词组短语短语Middle -Upper Cambrian Series 中上寒武统upper Cambrian series更多词组专业释义地球科学上寒武统