There are three factors, input factors, technical improvement and technical efficiency, influence the increase of maize yield.
影响玉米单产增长的诸多因素大概可以归纳为三类，一是要素投入，二是技术进步，三是技术效率。
Continuous growth of economy depends on the improvement of technical efficiency and technical progress.
经济的持续增长依赖技术效率的不断提高和技术进步的不断实现。
The results show: (1)the average growth ratio of China's dairy industry from 1998 to 2005 is 0.6% , the decline of technical efficiency can not counteract the improvement of technical progress.
研究表明，1998~2005年，中国乳制品业全要素生产率以年均0.6%的速度增长，技术效率的下降不足以抵消技术进步的增长；
In spite of a downward trend, its technical efficiency is still higher than the efficiency of the middle scale. The production efficiency of medium-sized household has greater room for improvement.
但尽管出现下降趋势，其技术效率仍高于中间规模的最低效率，即中等规模的牧户较其他组别而言，其技术效率有更大的改进余地。
The invention discloses a high-efficiency lawn improving machine and belongs to the technical field of lawn mechanical improvement.
本发明公开了一种高效草地改良机，属于草地机械化改良技术领域。
The invention discloses a high-efficiency lawn improving machine and belongs to the technical field of lawn mechanical improvement.
本发明公开了一种高效草地改良机，属于草地机械化改良技术领域。
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