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The magma under coal layer bottom does support action.
而煤系地层底部的岩浆侵入体，起了砥柱作用。
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Coal gasification with the Fixed Bed Dry Bottom Gasifier technology is back on stage.
利用固定床干底气化器技术的煤气化重返舞台。
youdao
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Coal gasification with the Fixed Bed Dry Bottom Gasifier technology is back on stage.
利用固定床干底气化器技术的煤气化重返舞台。
youdao