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	Suggestions for Revegetation over the Next 30 Years Based on Precipitation in the Three North Region of China 期刊论文 OAI收割 SUSTAINABILITY, 2021, 卷号: 13, 期号: 22, 页码: 18 作者: Xiao, Yu; Xie, Gaodi; Lu, Chunxia; Zhang, Changshun; Xu, Jie \| 收藏 \| 浏览/下载：48/0 \| 提交时间：2022/01/05 precipitation threshold optimizing scheme the Three North Shelterbelt Program
	Suggestions for Revegetation over the Next 30 Years Based on Precipitation in the Three North Region of China 期刊论文 OAI收割 SUSTAINABILITY, 2021, 卷号: 13, 期号: 22, 页码: 18 作者: Xiao, Yu; Xie, Gaodi; Lu, Chunxia; Zhang, Changshun; Xu, Jie \| 收藏 \| 浏览/下载：34/0 \| 提交时间：2022/09/21 precipitation threshold optimizing scheme the Three North Shelterbelt Program
	Suggestions for Revegetation over the Next 30 Years Based on Precipitation in the Three North Region of China 期刊论文 OAI收割 SUSTAINABILITY, 2021, 卷号: 13, 期号: 22, 页码: 18 作者: Xiao, Yu; Xie, Gaodi; Lu, Chunxia; Zhang, Changshun; Xu, Jie \| 收藏 \| 浏览/下载：38/0 \| 提交时间：2022/09/21 precipitation threshold optimizing scheme the Three North Shelterbelt Program
	Optical design of reflecting telescope with large field (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Gong D.; Tian T.-Y.; Wang H.; Wang H.; Wang H. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 Reflecting telescopes have been widely used for many outstanding advantages. But the field of a common reflecting system is too small to meet the needs nowadays. When a correcting lens is inserted at the rear of R-C system the off-axis image quality is significantly improved. After optimizing with CODE V optical design software a new design scheme of reflecting telescope with large field of view is achieved. 2009 SPIE.