proofing

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

摘要防火林带的防火性能与阻风性能密切相。

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

清洁剂是一种特为清洗表之清洁剂，具胡防雾、防霉功能，用过清水。

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防尘剂。