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.

玻璃清洁剂是一种特为清洗玻璃表之清洁剂，具胡雾、霉功能，后无需过清水。

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.

采工业脂肪酸和环氧乙烷加成法研制成乳化剂,进一种新型染料尘剂。