出版日期
细化搜索
结果 1-2 的 2
Design construction and performance test of a bee hive [Philippines]
1984
Javier, L.
The high temperature in the hive greatly affected the weight of honey produce. Weight of honey collected from the hive made of bricks was significantly lower than that of the wooden bee hive. To effect higher honey production, additional holes for air passages were provided for proper ventilation inside the hive. The lamp should be tested only during night time and turned off during day time from 10:00 o'clock a.m. to 2:00 o'clock p.m.
显示更多 [+] 显示较少 [-]
University Library, University of the Philippines at Los Baños - Philippines
Ul wielokorpusowy jako siedlisko rodziny pszczelej (czesc 1).
1984
Ostrowska W.
Wolters Kluwer - United States of America
