acheon 发表于 2025-3-28 16:03:02
http://reply.papertrans.cn/67/6654/665309/665309_41.pngCANT 发表于 2025-3-28 19:51:06
https://doi.org/10.1007/978-3-031-13115-8Normal forms and perturbation theory; Three-body problem; Celestial Mechanics; Space debris; Orbital Det发芽 发表于 2025-3-29 02:59:29
,The Unaccomplished Perfection of Kepler’s World,A short walk trough the main works of Kepler, notably the ., trying to follow his search of the perfection of the World till the discovery of his celebrated laws. At the end of the road, the consciousness that the finish line had not yet been reached.Missile 发表于 2025-3-29 04:50:25
ents theoretical perspectives on technological innovations pThis book addresses key issues concerning the maintenance time and development of patents granted by China, as well as the patent maintenance time granted by the United States, Germany, France, Japan and South Korea. Such issues include the