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

Tests were done to research the influence of intake preheating during start process for electronic controlled diesel engine by using the electronic controlled diesel engine which was combined with VP37 electronic controlled distributor type injection pump management system and VS100 demarcate system. Tests were done to research the end symbol rotate speed of start,，which influenced the performance of electronic control diesel engine during start process. Optimization process of fuel supply map during start process was drawn under the condition of intake preheating through the tests. The conclusion was also reached——the limit data of engine’s speed increased during the period between end of start phases and effective terminal of start fuel supply map was decided by the engine’s inherent characteristic. 