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1.Allen-Bradley(美国AB)系列产品》
2.Schneider(施耐德电气)系列产品》
3.General electric(通用电气)系列产品》
4.Westinghouse(美国西屋)系列产品》
5.SIEMENS(西门子系列产品)》
6.销售ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic、Robots、MOTOMAN Robots。
7.estinghouse(西屋): OVATION系统、WDPF系统、MAX1000系统备件。
8.Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。Invensys Triconex: 冗余容错控制系统、基于三重模件冗余(TMR)结构的zui现代化的容错控制器。
9.Siemens(西门子):Siemens MOORE, Siemens Simatic C1,Siemens数控系统等。
10.Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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movement, the mining subsidence model based on dip angle change, the supporting plate theory of rock stratum movement, Most of these are difficult problems that need to be solved urgently on site and have not been solved for a long time. 2. The adequacy of mining is an important aspect of rock movement research. Many mining impact problems are related to the adequacy of mining. The so-called full mining refers to such a mining subsidence state: under certain mining conditions, When the mining face advances to a sufficient size, the maximum subsidence of the surface will no longer increase with the advance of the working face; On the contrary, if the maximum subsidence value of the surface still increases with the advance of the working face, the mining subsidence state is insufficient mining. The sufficiency of mining involves many factors, such as the geometric size of the goaf, mining depth, overburden lithology and mining method. In addition, it also involves the dip angle of coal strata and the mining of large dip coal seams, which are affected by the vertical component of the goaf, There is often no state of full mining, and the following discussion only considers the situation of small dip angle. The problem of insufficient mining is more common, such as single narrow working face mining, large mining depth coal seam mining, strip mining, steeply inclined coal seam mining, etc. all belong to insufficient mining. The problem of extremely insufficient mining under the condition of large mining depth is still prominent. Extremely insufficient mining is a special case of insufficient mining, It is a kind of insufficient mining with minimal sufficiency. The commonly used