分析了一起起重机因锈蚀而产生裂纹的起因，提出了有针对性的解决措施。
This paper analyses the causes for rust and fissure of cranes and puts forward some countermeasures.
本文采用对锈蚀后试件表面进行“镀铬色自动喷漆”的处理在试验过程中可以使裂纹更加清晰的观察记录；
The treatment technology of "chrome-automatic painting" on the surface of the corroded specimens will make crack more clear to be observed and recorded in the test.
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