noxious substance的用法和样例：
例句
- It can effectively improve air quality by releasing the fresh air to purify the indoor air and adsorb harmful substance.
排放清新空气以净化室内空气，吸附有害物质，有效地提高空气质量。 - Surveillance and control of the quality of hemodialysis water has become much necessary in order to avoid contacting noxious substances.
为避免接触已知的或可能的有害物质，监测和控制透析用水的水质非常必要。
