The problems existed in electric supply protection for coal mine are introduced,and the features and result of the computerisation reform plan are provided.
By improving the BTR1-PST286 wish single sucperd hydraulie trepanner made in Germany.Realize adjustable of electric line.preventing accidents of electric line or stecly line fall down.
Through usual and unusual analysis on using meager coal as fuel for bitumite-fired boiler,the innovation plan was made and corresponding modification of the boiler was carried out.
Dissolution is controlled by both sedimentation and tectonization, and the converted degree on reservoirs is closely related to sedimentary facies and the distance from unconformity interfaces.
This article analyze the condition of demethanizer after revamping. The operation state afterwards the revamp is summarized and further optimization of the demethanizer is given in the paper.
The former three stages reflect the major process of eclogite facies metamorphism and the latest stages the light overprinting of greenschist facies retrometamorphism at the shallow level of crust.
First, the article gives a boundary to the object of this study.The research mainly pays attention to the city waterfronts, which had been thriven but now have been abandoned and ruined.
They had payed much attention to the investment in the country land, the improvement of the material and the breed, the commodity of the farm produce and the rebulid of the traditional produce manner.