在历史五个月的复苏之后，实际的产量已经回升到经济衰退之前的最高峰。
Real output has yet to return to its pre-recession peak, even after five quarters of recovery.
在最高产量时，紧凑型玉米品种与松散型玉米品种相比具有叶面积系数大，干物质积累数量大，经济系数高等特点。
At same time, the leaf area coefficient, dry matter accumulation and economic coefficient of compact type corn variety is bigger than loosely type corn variety.
过去五年，中国经济飞速发展促使钢材产量提高了三分之一，超过了2004年首次达到的10亿吨的最高纪录。
Surging economic growth in China pushed world steel production up by one third in the last five years, exceeding the billion-ton threshold for the first time in 2004.
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