As a most drought type in temperate steppe, the desert steppe in Inner Mongolia is a district with harshest natural condition, lowest productivity and weakest ecosystem in steppe districts.
内蒙古荒漠草原是温带草原中最干旱的一个类型，为草原区自然条件最严酷、草场生产力最低、生态系统最脆弱的一个地区。
The inner profile is one of key factors which influence the productivity and fuel rate of BF.
合适的高炉炉型是提高产量、降低燃料比的关键。
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