proofing

The fire proofing efficiency is closely correlated with the wind speed in the aweather area of the firebreak tree belt.

摘要火林带的火性能与阻风性能密切相关。

This is a powerful rinse-free, antilog and mildew proofing cleaner specially designed to clean hard-shine surface. Such as window, mirror, etc.

玻璃洁剂是一种洗玻璃表之洁剂，雾、霉功能，用后无需过水。

A novel dust proofing agent for dyestuff was prepared by the addition of industrial fatty acid and glycol epoxide, which could produce a kind of emulsor.

采用工业脂肪酸和环氧乙烷加成法研制成乳化剂,进而获得一种新型染料尘剂。