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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 发表日期：2020    内容类型：期刊论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The Effect of Air Pollution on the Healthy Growth of Cities: An Empirical Study of the Beijing-Tianjin-Hebei Region 期刊论文 APPLIED SCIENCES-BASEL, 2020, 卷号: 10, 期号: 11, 页码: 13 作者:  Zhang, Fan;  Xu, Ning;  Wang, Lishuang;  Tan, Qiu 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/09 air pollution  industrial development  simultaneous equation model  Beijing-Tianjin-Hebei region   Pose adjustment capability of secondary mirror in correcting gravity deformation of large aperture remote sensor 期刊论文 Instrumentation Mesure Metrologie, 2020, 卷号: 19, 期号: 2, 页码: 161-168 作者:  X. Li,J. Guo,M. Shao,Y. Li and Q. Wu 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/06 Precision Analysis and Error Compensation of a Telescope Truss Structure Based on Robotics 期刊论文 Applied Sciences-Basel, 2020, 卷号: 10, 期号: 18, 页码: 20 作者:  R. Wang,F. G. Wang,Y. Y. Cao,H. H. Wang,X. Q. Sun and F. H. Liu 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/06 Research on Degree of Freedom of Secondary Mirror Truss Mechanism Based on Screw Theory and Geometry Algebra Applied on Large Telescopes 期刊论文 Optik, 2020, 卷号: 224, 页码: 11 作者:  R. Wang,F. G. Wang,L. Hao,Y. Y. Cao and X. Q. Sun 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/06 Support structure and optical alignment technology of large-aperture secondary mirror measured by back transmission method 期刊论文 Optik, 2020, 卷号: 207, 页码: 10 作者:  F. A. Yu and S. Y. Xu 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/06 Design and verification of high-precision multi-star simulator with a wide field of view 期刊论文 Chinese Optics, 2020, 卷号: 13, 期号: 6, 页码: 1343-1351 作者:  H.-G. Xu,B. Han,M.-L. Li,H.-T. Ma,P.-Y. Zhang and D.-H. Ju 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/06