In economic society, safety demand is based on economicinvestment, likes people's other demands.
在经济社会中，安全需求同人类的其他需求一样，需要一定的经济投入作为基础。
2
Spiritual civilizations key lies in building, its basis rests with indispensable economicinvestment.
精神文明重在建设，基础在于必要的经济投入。
3
Two typical different technique wet type ball mill system and limestone powder preparation system were compared from techniques flow and equipment and economicinvestment for 1000MW units.