悄悄移动
发表于 2025-3-26 23:47:06
Andrea Guazzini,Federica Stefanelli,Enrico Imbimbod children frequently stop work, then start working again—a phenomenon we call “intermittent employment.” Children’s tendency to work intermittently is reflected by differential employment levels, depending on the time interval used, and by monthly employment entry and exit rates. We use estimates o
FOLD
发表于 2025-3-27 04:15:15
http://reply.papertrans.cn/39/3852/385107/385107_32.png
mosque
发表于 2025-3-27 07:54:25
Karlhans Lieblin this paper are efficient to estimate the take-off and landing performance of low-cost UAVs and also provide rapid and convenient support to carry out demands analysis and the design of low-cost UAVs especially in the preliminary phase.
真繁荣
发表于 2025-3-27 13:10:47
http://reply.papertrans.cn/39/3852/385107/385107_34.png
Bronchial-Tubes
发表于 2025-3-27 15:07:23
http://reply.papertrans.cn/39/3852/385107/385107_35.png
Stable-Angina
发表于 2025-3-27 19:46:53
http://reply.papertrans.cn/39/3852/385107/385107_36.png