economy jet省油量孔economyn.经济；节约adj.经济的；廉价的Economy is monopolized经济性垄断Economy responsibility经济责任Economy-constrcuting经济建设economy of labor power劳动力经济制度economy of ethnic area民族地区经济economy in consumption节约消费economy class syndrome经济舱综合征economy and management经济管理economy transformation经济转型Economy model analysis经济模型分析