threshv.打谷；脱粒；反复地做threshoid quantity临界量threshing cylinder脱粒滚筒,脱粒圆筒Thresher's disease[化] 恩特普罗; 四(2-羟丙基)乙二胺threshing-ground打谷场threshhold function阈值函数threshing equipment脱粒装置threshing mechanism脱粒装置threshing equipments脱粒装置threshing performance脱净率threshing and redrying打叶复烤