常見例句雙語例句Establishing the mathematic model of grade indexes to ore reserve;雙指標(biāo)品位-儲量數(shù)學(xué)模型的建立。In order to obtain an efficient extraction to mineral resources, a method with sufficient accuracy for estimating the grade and tonnage of ore reserve is required.有傚地開採鑛物資源需要對賦存的品位及鑛量有一準(zhǔn)確的估計。The paper provides a typical mode of deposit modelling system according to the requirements of ore reserve statistics and calculation and computer-aided mining design.針對鑛石儲量統(tǒng)計與計算、計算機輔助採鑛設(shè)計的需要,本文提供了一種較爲(wèi)典型的鑛牀建模系統(tǒng)模式。權(quán)威例句It has been estimated on the basis of the amount of indium in zinc ore stocks, there is a world reserve base of 6, 000 tonnes.FORBES: 14% Efficiency for Thin-Film Solar Cells, but Where Will the Indium Come From? 返回 ore reserve