Psychological principle of agricultural extension ;
农业推广心理学原理；
But the agricultural extension system is now in some disrepair.
然而，此项农业推广体系如今已年久失修。
Studied the agricultural extension gray system characteristic.
研究了农业推广灰色系统的特性。
This research has discussed the basic unit agricultural extension way in new rural reconstruction time.
本研究探讨了新农村建设时期基层农业推广方式。
Extension Horticulture Technologist, Agricultural Extension Service, University of California, Riverside.
园艺推广技师，园艺推广中心，加利福尼亚大学河滨校区。
Extension Subtropical Horticulturist, Agricultural Extension Service, University of California, Riverside.
亚热带园艺推广专家，园艺推广中心，加州大学河滨校区。
Extension Subtropical Horticulturist, Agricultural Extension Service, University of California, Riverside.
亚热带园艺推广专家，园艺推广中心，加州大学河滨校区。
应用推荐