Ozone provides a natural protectivefilter against harmful ultra-violet rays from the sun, which can cause sunburn, cataracts and skin cancer as well as damage vegetation.
臭氧提供天然的保护，防止太阳的有害紫外线的侵害，这种紫外线会导致晒斑，白内障，皮肤癌以及危害植物。
2
As in pattern 3, the mashup hub can be used to transform the data (filter, restructure, or sort) and to enable access control of protective data sources.
Objective To evaluate the protective efficacy of protective equipment, such as gas-filtering can, high-efficiency filtering material and high-efficiency filter, against microorganism aerosol.