concrete cracks的用法和樣例：
例句
- Concrete cracking is one of the reasons for leaking in underground works.
混凝土裂縫是地下工程滲漏的重要原因之一。 - This paper analyzes the characteristics of large pump concrete and the cause of Concrete crack, provides corresponding prevention measures.
摘要文章分析泵送混凝土特點(diǎn)及大體積混凝土裂縫產(chǎn)生的原因，提出防治措施。
