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 soil separation device, composited with vibration unit and transformation unit, was designed by using AIP software. The proposed device was assembled at the type QM-500 fruit seedling lifter came with a 58.8kW tractor. The experiments were carried out in the fruit seedling breeding base of Lixian county. Experiments showed that when the eccentric distance was 52mm, the tilt angle was 13.72°, the coefficient of travel speed variation was 1.02, the polar angle was 2.03°. The field experiments showed that the lifting efficiency was 1.6 plants per second. The manpower was decreased by 50.85% which reduced the labor intensity and realized the simplified operation of the apple seedling lifter.