high temperature ovens 高温箱
Carbonisation is the thermal process for the conversion of coal into coke, involving heating coal at high temperature for many hours in the absence of air whilst contained in ovens.
焦化作用是将煤转化为焦炭的热处理过程，涉及到将煤在焦炭炉中隔绝空气高温加热数小时。
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