From the auxiliary equipment used in fermentation industry, the causes of infection occurred in ferment process were analyzed.

从发酵工业的配套装备入手，分析了由于设备原因导致的发酵染菌，并提出了预防和改进的方法。

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Finally, once the biofuel crops have been planted, grown and harvested -- often with the direct involvement of fossil fuels in the form of fertilizers, pesticides and petrol to power farm equipment -- they then have to go through a distillation and fermentation process to actually turn them into fuel.

CNN: Biofuel: Green savior or red herring?