由于使用无需任何预处理和造块的矿粉，熔融还原法既可节能、又能减少污染。
The smelting reduction process saves energy and lessens pollution through using of ore fines without any pretreatment and agglomeration.
研究表明，经过预处理的碳粉，采用预制块压入法可使碳的吸收率稳定在90%左右。
The research shows that the carbon absorption rate can be up to 90% approximately by using the pretreated carbon powder and precast block penetration method.
为实现快速的条形指纹图像拼接，在两步相关方法的基础上，改进预处理和块相关操作，进一步加快条形指纹图像拼接速度。
To implement a fast slice fingerprint image synthesis, an improved method of pre-operation and two-step correlation is adopted to further accelerate the synthesis speed.
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