These experimental methods have assured the successful proceeding of the research work on the autotempering of low-carbon martensites and yielded significant results.
这些试验方法，保证了自回火的研究能顺利进行，并得出了有价值的研究结果。
2
Function : be applicable to the technics of hardening and tempering heating treatment of batch cast, forgeable piece and auto parts .