对未经氧化的含黄铁矿高岭岩， 选择性粉碎的目的是解离并分选出黄铁矿及其聚合体。

For pyritecontaining unoxidized kaolinite, the selective comminution aims at liberating and separating pyrite and its interlocking minerals.

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如果让那些未经控制能够聚热的气体比如二氧化碳，CO2排放会很有可能引起危险的全球变暖，这将会威胁到我们的健康与环境。

If left unchecked heat trapping emission such as carbon dioxide, CO2, are projected to cause dangerous global warming that threatens our health and environment.

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此外，与未经过处理的土壤相比，含生物碳的土壤会释放较少的甲烷和一氧化二氮。

Moreover, soil containing biochar releases less methane and less nitrous oxide than its untreated counterparts, probably because the charcoal ACTS as a catalyst for the destruction of these gases.

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