The actual causes of bad breath are caused by the large population of bacteria and chemicals such as acid indomethacin-yan, and sulfide odor occurs and so on.
实际口臭的原因是细菌大量繁殖导致的酸性及化学物如吲哚美欣，及硫化物等等出现的气味。
2
The quality components and proper system design of a fogging system will allow for an efficient and economical delivery system for all odor removal chemicals.
质量组件和喷雾系统将能为所有除臭化学品高效和经济的传递系统妥善的制度设计。
3
In surface-water treatment plants equipment for feeding two or three taste- and odor-removal chemicals is usually provided, so the operator can select the most effective chemicals.