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在采掘部门，对于露天开采的矿岩备用量的说明和定额是很不完整的。通常它们是按某种工艺过程的准备程度划分：准备储量——指的是能导致初始工艺过程（凿岩、爆破等）的体积；开拓储量——是用运输开拓巷道所保证的准备储量；备采储量——系来自岩体或爆难的能铲掘的那部分准?
In the extractive sector, the description and quotas for open-pit ore reserves are incomplete. Usually they are divided according to the degree of preparation for a certain process: reserve reserves - refers to the volume that can lead to the initial process (rock drilling, blasting, etc.); open reserves - reserve reserves guaranteed by transport open roadways; Reserve for reserve - the part that can be excavated from rock mass or explosion?