强所
发表于 2025-4-1 02:55:56
http://reply.papertrans.cn/35/3496/349539/349539_61.png
负担
发表于 2025-4-1 08:39:25
https://doi.org/10.1007/978-1-4613-0635-1X-ray; development; electron microscopy; microscopy
带来
发表于 2025-4-1 13:31:24
The Calculus of Variations: A Historical Perspective,mprehensive treatment of this topic. Rather, we introduce the fundamental necessary and sufficient conditions for optimality by fully analyzing two of the cornerstone problems of the theory, the . and the problem of determining surfaces of revolution with minimum surface area, so-called .. Our empha