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[会议论文] 作者：Liu Guangzhe,
来源：2009杨凌国际农业科技论坛 年份：2009
Government extension system has been under pressure in China for being inefficient; lacking clear objectives and incentives; and lacking relevance, though there are about 700,000 extension agents empl...
[期刊论文] 作者：Longyue Li,Fuxian Liu,Guangzhe,
来源：系统工程与电子技术：英文版 年份：2016
One important mission of the strategic defense is to develop an integrated, layered ballistic missile defense system(BMDS). Considering the problem of assigning...
[会议论文] 作者：Kai Zou,Lumei Liu,Guangzhe Piao,
来源：the 4th international conference on magneto science (第四届磁科学国 年份：2011
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