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| 高炉压差; 高炉压力降 (【技】高炉炼铁过程中不同高度平面间煤气静压力的差。炉缸高度平面与炉喉高度平面间的压力差为高炉总压差；在高炉炉身下部装有静压力测定装置时，炉缸与炉身下部之间的压力差为下部压差，而炉身下部与炉喉之间的压力差为上部压力差。) | |||
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