分析了发生在飞机金属构件上的腐蚀类型及其特点。
The types and characteristics of the corrosion occurred on metallic components of aircraft were analyzed.
就虎林市的气候特征，阐述了当地低温冷害的三种类型及其特点。
According to the character of climate in Hulin city, had a discussion on three types of local damages of low temperature and their characters.
因而结合一个地区矿产资源的类型及其特点制定该地区矿产资源的总体规划是非常必要的。
Thus, combined with a type of mineral resources and characteristics of the the region's to make a overall planning of mineral resources is essential.
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