concrete core

• 混凝土心

concrete core的用法和样例：

例句

1. It is assuredly helpful to well know these characteristics for either proper design of rockfill dam with bituminous concrete core,or reasonable construction.
   全面掌握这些特征，无论对沥青混凝土心墙堆石坝的正确设计，还是合理施工，无疑都是有帮助的。