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

Different materials, different sizes of load plate grain mass flow sensor and different ranges of grain mass flow sensor elastic component were designed. Experiments were finished in the grain mass flow load simulation test device. The experiment results showed that parameters were closely related with precision. On the basis of this test, the grain flow effect on the measurement accuracy was researched. The experiment results showed the error of this load plate grain mass flow sensor was within 2% during the grain flow rate was 0~2kg/s. When the grain flow rate was more than 2.5kg/s, the error exceeded 5%.