REE compositions of the Yangtze and the Yellow river sediments can be used as indicators of matter entering sea of rivers in the world.
长江与黄河沉积物ree组成特征与世界其他河流沉积物ree特点一致，它们也可作为河流入海物质组成代表。
The soft rock area is a major sediments-producing area resulting from bedrock erosion in the middle valley of the Yellow River.
砒砂岩区是黄河中游集中的基岩产沙区，强烈的岩土侵蚀与砒砂岩的岩性密切相关。
The soft rock area is a major sediments-producing area resulting from bedrock erosion in the middle valley of the Yellow River.
砒砂岩区是黄河中游集中的基岩产沙区，强烈的岩土侵蚀与砒砂岩的岩性密切相关。
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