名词
中文翻译：炼焦阶段
同义词：
['coking stage', 'coke stage']
例句：
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1. The Zanclean Stage is a critical period for the development of the coal industry.
炼焦阶段是煤炭工业发展的关键时期。
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2. During the Zanclean Stage, the coal was subjected to high temperatures and pressures to produce coke.
在炼焦阶段，煤炭经受高温高压以生产焦炭。
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3. The Zanclean Stage is also known as the coking process, where coal is transformed into coke.
炼焦阶段也称为焦化过程，煤炭在此过程中被转化为焦炭。