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

A pendulum impact cutting test-rig and a cutting force measurement system composed of a cantilever weigh sensor and a high speed analog acquisition card were developed. Then cutting mechanical property experiments of super rice stalk were carried out. According to the measuring cutting force, the cutting power consumption of different super rice stalk were calculated, and the influence of cutting speed, cutting position and parting cutter on the cutting force and consumption were analyzed. The results indicated slight decreasing tendency of cutting force with the increasing of cutting position. The peak cutting force and the cutting power consumption nearly linear increased with the increasing of cutting sectional area, but both decreased gradually with the increasing of cutting speed. The peak cutting force of different single super rice stalks could reach 24~32N. 