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

Table 11

The resulting ranking.

	2 ( = 20~40 m)	3~9 ( = 40~180 m)	10~12 ( = 180~240 m)	13~15 ( = 240~300 m)
Partial ranking	, , , ,	, , , ,	, , , /	, , , ,
Complete ranking	, , , ,

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