In order to avoid the decline in big dip angle working face,this paper introduces some methods,such as,the feed from the top;one-way mining from the down;mining without knife from the top;the installation of anti-skid jack and sub-sequence moving,which achieve good results.
为解决大倾角综采工作面设备的下滑、倾倒,采取了工作面上端头进刀,单向下行割煤,上行空刀装煤,安装防滑千斤顶和分段顺序移架等方法,有效地控制了采煤机、链板机和支架的下滑与倾倒,取得了很好的效果。
By using a simplified mathmatical mo del of landing gear,the computer sim ulation of operating process of the anti-skid brake system of an aircraft in landing is carried out.
通过采用一个简化的起落架数学模型,对某机在着陆滑跑过程中防滑刹车系统的工作状态进行计算机仿真;并通过改变起落架的结构参数,对起落架与刹车系统在飞机着陆刹车过程中的相互作用进行了初步的定量分析,最后提出了考虑起落架因素的刹车系统半物理仿真试验验证方法。
Introduced in this paper is the technique to improve anti-skidding of the pavement micro and macro structures, in connection with the result from pavement anti-skid research in National Project 025.
本文根据国家０２５项目有关水泥混凝土路面防滑技术的研究成果，着重介绍了提高路面微观构造和宏观构造的抗滑能力的技术措施。
