规模经济效应
scale economy characteristics
规模经济
scale economies
economy of scale
economies of scale
scale of economies
Scale economy
scale economics
economics of scale
Large scale production
Operation with large-scale
economics of scales
ISO14000 clean production
Large-Scale economy
large-scale economies
economic repair life
scale economey
increasing returns to scale
economies of scales
经济规模原则
principle of economies of scale
内部规模经济
Internal economics of scale
外部经济规模
External economics of scale