The grain coarsening behaviour towards the austenitic hot work tool steels has been studied by means of quantitative metallography.

本文用定量金相法分析和讨论了奥氏体热作工具钢的晶粒粗化行为。

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Tool compatibility and hot work risks require even greater attention to the job, and the hazards that are specific to the work area.

由于工具适用性和高温作业风险问题的存在，我们需要更加密切地关注工作，以及工作区域中特定的种种危险。

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