所选用的机制（并不是惟一的实现方法）涉及创建伪 MIME 类型，匹配用户代理字符串和使用 Rails 的 respond_to 机制。

The mechanism chosen, which is not the only possible way to manage this, involves creating a pseudo-MIME type, matching the user-agent string and using Rails' respond_to mechanism.

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根据矿体赋存条件和所选用的采矿方法，各种采矿方法所占的比例，计算采矿综合法损失率为12%、贫化率为15%。

According to the condition of ore body, selected mining method and proportion of each mining method, and through calculation, the mining loss rate is 12% and the impoverishment rate is 15%.

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本论文所选用的双线性PV插值法不会引入新的灰度值，优于其它插值方法。

The double-linear PV interposition we select won't produce new intensity, so it is better than other interposition methods.

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