spiral crack的意思|示意

The result indicated that the failure cause of the stainless steel spiral pipe is the stress corrosion crack induced by Cl- ion.

结果表明，不锈钢盘管失效的原因是氯离子引起的应力腐蚀开裂所致。

In addition, spiral case design method by layers and blocks, concrete temperature control, construction quality control, additional anti-crack reinforcement bar disposal, etc.

并结合工程实际介绍了分层分块设计、混凝土温控、施工质量控制、增设温度筋和抗裂筋等技术措施。