A concentration process is important now that the depletion of high grade ores is possible.
由于目前商品级的矿石可能用完，富集过程是重要的。
I've never experienced such a high tension and concentration before.
我之前从来没有感受到如此好的紧张状态和集中力。
A. sitting the patient up; giving high-concentration oxygen by non-rebreather mask.
让病患坐立，并用非再吸入面罩给予高浓度氧气。
It requires a high level of concentration, and a systematic, steady approach.
它需要极高程度的专注，以及系统性，按部就班的方法。
High concentration of CO2 can cause a series of positively toxic injuries to the body.
高浓度二氧化碳对机体具有一系列肯定的毒性致伤作用。
High concentration of CO2 can cause a series of positively toxic injuries to the body.
高浓度二氧化碳对机体具有一系列肯定的毒性致伤作用。
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