所谓割前脱粒是相对传统的先脱后割收获工艺而言的 ,从广义上讲 ,既包括站秆直接脱粒 ,又包括捋 (摘 )穗 ;从狭义上讲 ,站秆脱粒与捋 (摘 )穗有所区别 ,即侧重点不同 ,脱出物中子粒所占比例有所不同。本文从广义上综述几种割前脱粒新机型。1　 4L S系列稻麦捋穗联合收割机该机? The so-called pre-cutting threshing is a relatively traditional first-off cutting technology, the terms of speaking, in a broad sense, both the stalks directly threshing, including the spine (picking) spike; from a narrow sense, ) Spike different, that focus on different points, the proportion of the prolapse of the seeds are different. This article summarizes several new models of threshing before cutting in a broad sense. 1 4L S series rice and wheat spike combine harvester this machine?