dragon
发表于 2025-4-1 02:48:34
http://reply.papertrans.cn/32/3188/318792/318792_61.png
狂热文化
发表于 2025-4-1 07:11:31
Robert Egnell,Petter Hojem,Hannes Berts crop growth. The chapter deals with the measurement of wind speed and direction and the instruments used for the same. The units used for expression of wind speed and their correlation have been given. The chapter also introduces wind rose and Beaufort Scale.
小鹿
发表于 2025-4-1 13:55:56
https://doi.org/10.1057/9780230337626irectly from the sun). The instruments and accessories are required for measurement of sunshine duration have been explained. The installation of these instruments as well as the procedure for taking the observations has been discussed.
Communal
发表于 2025-4-1 18:00:16
http://reply.papertrans.cn/32/3188/318792/318792_64.png