The article discusses the special contradiction, "top heat and bottom cold", which is unsolved in China' s ferro-manganese blast furnace and its reason, the shortage of present approaches, as well as main direction.
论述了"上热下凉"是国内锰铁高炉尚未解决的特殊矛盾以及矛盾产生的原因,目前处理措施的弊端,以及今后的主攻方向。
To monitor interior stress s variation which is variety by time is an effective approach of seismic physical forecast.
通过地震波速度变化的精确测量,来监测地下应力随时间的变化,是进行地震物理预报的有效途径。