单词winnower
n.: 簸扬者；风车
网络: 扇车；风选机；扬谷器
风力清选机
簸谷机,风选机,扇车,风车
簸扬者
I was helping father on the winnower. It was right then I got the idea. I could whack a chunk off the end of that bar of chocolate.
我在帮爸爸扬谷，这时我突然有了个主意，我可以从那块巧克力的一头敲下一块来。
combined winnower and grader with rotary screen
旋转筛联合风选分级机