Cleaning this smoke has exceeded the protectiveability of natural processes.
要清除这些烟尘已超出了自然作用的保护能力。
2
The influence of the thickness, percent cover and color on UV-Protectiveability were analyzed. The UV-Protectiveability of clothing worn in summer was discussed.
They also show that water absorption could availably evaluate the waterproof ability and resistance to acid and alkali corrosion of concrete protective coatings.