中国玉米生产的技术效率损失测算 关键词：玉米；随机前沿面生产函数；技术效率损失 [gap=711]Key words： maize；stochastic frontier production function；loss of technical efficiency
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By making study on the characteristics of mass transfer efficiency - head loss of fiber bundle media, the technical parameters were determined for the fiber bundle filter.
从研究纤维束滤料的传质效率一水头损失特性出发，确定了纤维束过滤器的技术参数。
The technical efficiency loss of the state-owned commercial banks almost resulted entirely from scale efficiency loss, but the ratio is over 50 percent in joint-stock banks.
国有商业银行技术效率损失几乎全部来自规模效率的损失，股份制银行的技术效率损失中有一多半来自规模效率损失。
By making study on the characteristics of mass transfer efficiency-head loss of fiber bundle media, the technical parameters were determined for the fiber bundle filter.
从研究纤维束滤料的传质效率—水头损失特性出发，确定了纤维束过滤器的技术参数。
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