The slide characteristic and geologic distribution of residual soil slope are introduced, the strength character of residual soil is analyzed.
简要介绍了残积土边坡滑动变形特点和地质分布特征，分析了残积土的强度特性。
Geologic distribution and production situation of manganese mine resource in the world are described, and it presents the production and marketing of manganese ore briefly.
对国内外锰矿石资源的地质分布、生产状况进行了较为详尽的叙述，并简单介绍了世界锰矿石的产销状况。
Geologic distribution and production situation of manganese mine resource in the world are described, and it presents the production and marketing of manganese ore briefly.
对国内外锰矿石资源的地质分布、生产状况进行了较为详尽的叙述，并简单介绍了世界锰矿石的产销状况。
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