The recovery rate rose from 67.08 % to 71.70 % after technology innovation. Remarkable economic benefits have been yielded.
通过工艺改造，选矿回收率由改造前的67.08%提高到71.70%，取得了显著技术经济效果。
After technology stock bubble collapsed in 2001, optical component industry plummeted. But, it regained from 2004. The gross profit margin increased year by year, even peaked in 2007 and 2008.
光电子行业自2001年科技股泡沫崩溃后一落千丈，不过从2004年就逐渐恢复元气，毛利率逐年攀升，在2007、2008年达到巅峰。
After technology stock bubble collapsed in 2001, optical component industry plummeted. But, it regained from 2004. The gross profit margin increased year by year, even peaked in 2007 and 2008.
光电子行业自2001年科技股泡沫崩溃后一落千丈，不过从2004年就逐渐恢复元气，毛利率逐年攀升，在2007、2008年达到巅峰。
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