英语词汇grade A reserves怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	grade A reserves
释义	grade A reserves 简明释义 A 级储量网络释义 1 ?A级储量定义中文名称：A级储量英文名称：grade A reserves 定义：在精查阶段，通过较密的勘探工程控制,含煤性、煤层产状等均已查明,勘探程度高的煤炭储量。应用学科：煤炭科技（一级学科）；煤田地质与勘探（二级学科）；双语例句 1 In this paper, a simple method of grade reserves estimation is presented. 由此提出了品位-储量估值的简易方法。 2 In fact, it is difficult or even impossible to develop and utilize a considerable amount of the balanced ore reserves due to the Iower grade indexes. 由于指标偏低，使相当数量的平衡表内储量，实际上目前很难甚至尚无法开发利用。
随便看	reserved option clause reserved outlet reserved page reserved page frame performance option reserved page option reserved parking reserved place reserved point reserved portion reserved power reserved powers reserved profit reserved pump Reserved Quota reserved regimen reserve drive reserve route reserved seaplane area reserved seat reserved seating reserved second line reserved shares reserved slit reserved slot reserved space

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