炉次分析-是炼钢厂决定对钢特定炉次样本所做的化学分析。
Heat analysis-the chemical analysis determined by the steel producer as being representative of a specific heat of steel.
经多炉次试验，使组织达到正常，性能得到改善，使用寿命提高。
After many furnaces' test, normal structure is obtained, so properties are improved and used life is lengthened.
通过三台试验机组的设计和几百炉次的试验，确定了合理的设备结构和工艺参数。
The reasonable equipment structure and processing parameters are defined by the design of three test units and the test of hundreds times.
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