这些细菌实际上就是硫化氢和二氧化碳的结合体，而这种化学反应产生的有机物质是更大的有机体的食物。

These bacteria actually combine the hydrogen sulfide with the carbon dioxide and this chemical reaction is what produces organic material which is the food for larger organisms.

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此外，本文对化学催化氧化法转化硫化物的规律和机理，及光化学氧化法降解有机物的机理进行了初步探讨。

Furthermore, the thesis was discussed primarily the degradation principle of sulfide and mechanism of chemical catalytic oxidation on sulfide and photochemical oxidation on organic mechanism.

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此外，本文对化学催化氧化法转化硫化物的规律和机理，及光化学氧化法降解有机物的机理进行了初步探讨。

Furthermore, the thesis was discussed primarily the degradation principle of sulfide and mechanism of chemical catalytic oxidation on sulfide and photochemical oxidation on organic mechanism.

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