... contact area zone 接触区 contact metamorphic zone 接触变质带 contact point zone 释义接触点区 ...
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The contact metamorphic zone may be further divided into coking coal mixing zone, natural coke zone, coking coal zone and normal coal zone.
接触变质带可进一步划分为岩焦混杂带、天然焦带、焦化煤带、正常煤带。
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