粘土
发表于 2025-3-30 08:28:41
http://reply.papertrans.cn/15/1441/144010/144010_51.png
百科全书
发表于 2025-3-30 14:40:28
http://reply.papertrans.cn/15/1441/144010/144010_52.png
小官
发表于 2025-3-30 20:03:09
http://reply.papertrans.cn/15/1441/144010/144010_53.png
Crayon
发表于 2025-3-30 21:13:37
http://reply.papertrans.cn/15/1441/144010/144010_54.png
压倒性胜利
发表于 2025-3-31 02:49:22
http://reply.papertrans.cn/15/1441/144010/144010_55.png
Infantry
发表于 2025-3-31 06:42:57
https://doi.org/10.1007/978-3-663-02322-7hort pulses (in time) were physically long (in space). In the ultrasonic regime, however, physically short pulses are common (due to slow velocity of propagation). In this case steady-state theory is no longer adequate. In this paper I develop a simple method of analysis yielding the space-time impu
antiquated
发表于 2025-3-31 11:57:41
http://reply.papertrans.cn/15/1441/144010/144010_57.png
BALK
发表于 2025-3-31 15:14:22
http://reply.papertrans.cn/15/1441/144010/144010_58.png
字谜游戏
发表于 2025-3-31 18:25:43
http://reply.papertrans.cn/15/1441/144010/144010_59.png
AND
发表于 2025-3-31 22:28:42
http://reply.papertrans.cn/15/1441/144010/144010_60.png