英语词汇marginal grade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

短语

1
They are respectively named cut-off grade, marginal grade, economic grade and the average grade of an ore deposit.
这4项品位指标依次为边界品位、边际品位、经济品位和矿床平均品位。
2
Under the normal mining condition and 95% the utilization rate of the uranium resource in 320 uranium Deposit, 0.045% as the marginal grade is recommended.
在320铀矿床常规开采条件下，要求铀矿资源(金属量)利用程度不低于原情况的95%时，选择的边界品位为0.045%。

单词	marginal grade
释义	marginal grade 简明释义边界品位网络释义短语 1 marginal effect grade 边界品位 2 marginal economic grade 边际经济品位双语例句 1 They are respectively named cut-off grade, marginal grade, economic grade and the average grade of an ore deposit. 这4项品位指标依次为边界品位、边际品位、经济品位和矿床平均品位。 2 Under the normal mining condition and 95% the utilization rate of the uranium resource in 320 uranium Deposit, 0.045% as the marginal grade is recommended. 在320铀矿床常规开采条件下，要求铀矿资源(金属量)利用程度不低于原情况的95%时，选择的边界品位为0.045%。
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