Mathematical Problems in Engineering / 2015 / Article / Tab 8

Research Article

Selection of an Appropriate Mechanized Mining Technical Process for Thin Coal Seam Mining

Table 8

Priorities of the alternatives considering economical main criterion.

2 = 20~40 m)3 = 40~60 m)4 = 60~80 m)5~6
( = 80~120 m)
7~10
( = 120~200 m)
11~15
( = 200~300 m)

Priorities, , /, , /, , //, , /, , , /, , , /, , ,

Notes: / shows that the priority of alternative is the same as the one of .