protective coat

基本解释

Anthrax is a colorless, odorless, tasteless bacterium that protects itself from sunlight, heat and disinfectant by forming a protective coat.
炭疽熱是一種無色、無味的細菌。
The charcoal works have a different weight, partly due to the black colour, but also because they have a slightly watery sheen from the protective coat of resin, and due to their simple organic forms.
木炭作品的重量不一樣，一部分是由於黑色的緣故，但是也因爲它們有一層保護性的樹脂發出輕微的水樣光煇，竝且也由於它們簡單的有機式樣。
Flat and long-distance mining was used to mine underlying low burst coal protective coat, which released the pressure of 13-1 coal bed.
介紹了潘一鑛採用近水平遠距離開採下伏弱突出煤層保護層，達到對突出煤層13—1的卸壓；