urban sanitation efficiency的意思|示意
美 / /
英 / /
城市卫生效率
urban sanitation efficiency的网络常见释义
城市环境卫生 关键词: 城市环境卫生；技术效率；纯技术效率；规模效率；规模报酬 [gap=903]Key words: urban sanitation efficiency; technical efficiency; pure technical efficiency; scale efficiency; scale effic..