ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

The threshing cylinder is a key part of rape combine. But at present, the part’s design is mainly based on the prototype of rice threshing cylinder so there are many problems such as high loss rate and impurity percentage, poor adaptability and so on. On the self-designed test equipment of the threshing separation performance, the experiments of the threshing separation performance were conducted for rape, and the correlations among the structural and motion parameters of the threshing separation devices and the threshing separation performances were also analyzed. The experimental results showed that on the same condition, the short rasp bar cylinder had lower loss rate and lower power consumption, and there were little shore stalk and some other lighter matters in rape seed-tailings mixture to the short rasp bar cylinder.