粗端 meaning in English

butt end
large end

The impossibility of drumming in an unihabited jungle hit him about the same time as the spear - butt from out of the bushes to his left
丛林中这种难以相信的击鼓声向他袭来的同时一根长矛的粗端从矮树丛中伸出来，碰到在他的身体左侧。
The best dosage of dispersant and disperse medium , and the best time of ultrasonic disperse . secondly , the bp neural network process parameters model which describes the relationship between the important process parameters of the preparation of superfine quartz powder and the important evaluate guidelines was built , based on experimentation data . the forecast of the important guidelines was achieved with this model
其次,本文以试验数据为基础,基于bp神经网络建立了球磨法制备超细石英粉体的关键工艺参数(转速,时间,装样率,料球比)与粉体的关键评价指标(中值粒径,粗端粒径,均匀性系数)之间多目标多变量的bp网络工艺参数模型,该模型的建立实现了粉石英制备的关键指标预测。