要保证零件的热处理质量，应有先进的炉子结构、先进的控制系统，有好的操作规程以及合理的热处理工艺。
Better quality of parts heat treated in the sealed box furnace can be obtained on condition that design and control system of the furnace are advanced and operatings…
要保证零件的热处理质量，应有先进的炉子结构、先进的控制系统，有好的操作规程以及合理的热处理工艺。
Better quality of parts heat treated in the sealed box furnace can be obtained on condition that design and control system of the furnace are advanced and operatings…
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