In the field of the ancient Chinese language, the extension of lexical meanings is generally classified in the layer of concrete meanings.
有关词义引申的类型，目前古汉语界从具体意义联系角度进行归纳研究的尚嫌不够。
The distribution characteristics of coarse aggregate in wall-affecting layer of concrete were studied by digital image processing technology.
采用数字图像分析技术对混凝土边界效应层中的粗骨料分布特性进行了测定。
Penetration performance in surface layer of concrete target was analyzed by stress wave damage theory, calculating method base on "simplified equivalent resistance line" was presented.
从应力波表层损伤理论分析了混凝土表层“开坑区”的侵彻特性，提出“简化等效阻力线”的计算方法；
Penetration performance in surface layer of concrete target was analyzed by stress wave damage theory, calculating method base on "simplified equivalent resistance line" was presented.
从应力波表层损伤理论分析了混凝土表层“开坑区”的侵彻特性，提出“简化等效阻力线”的计算方法；
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