plain concrete structure造句

例句与造句

1. Plain concrete structure
   素混凝土结构24
2. Eurocode 2 : design of concrete structures . general rules . plain concrete structures
   欧洲规程2 :混凝土结构设计.总则.普通混凝土结构
3. It's difficult to find plain concrete structure in a sentence. 用plain concrete structure造句挺难的