In stock yards ammonia is formed by biological degradation. 在畜牧場(chǎng)，氨是由生物降解形成的。
It should be noted that disinfectants should not be poured into pits or tanks of latrines that dispose of excreta by biological degradation. 需要注意的是，對于通過(guò)生物降解處理排泄物的廁所，不應向廁坑或者水箱中投放消毒劑。
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