摘要: PROBLEM TO BE SOLVED: To provide a crawler-type tractor that is manufactured by using a structure of a small wheel-type tractor of rear-wheel drive to the maximum extent, and is improved in workability and safety.收藏 引用 批量引用 报错 分享 ...
摘要: PURPOSE: To obtain the antenna structure by which a dipole antenna and a parabolic antenna are simultaneously and stably fixed.收藏 引用 批量引用 报错 分享 文库来源 求助全文 ANTENNA STRUCTURE 优质文献 相似文献Regulation of antenna structure and electron transport in Photosystem II of Pisum ...