1998年夏收夏种期间,江苏省太仓市发生了3起不该发生的事情:一起是鹿河镇新幸村购买的上海某内燃机公司生产的495A曲轴,在最后安装正时齿轮、机油泵主动齿轮时,发现3道台阶上的键槽均未加工;第二起是浏家港镇茜星村在安装某多缸发动机第三只活塞卡簧时,发现活塞卡簧槽未开;第三起是璜泾镇 During the summer harvest in summer 1998, three things that should not happen in Taicang City, Jiangsu Province, together with a 495A crankshaft made by a Shanghai-based internal combustion engine company purchased by Xinyingcun, Luhe Town, were fitted with a timing gear, a gear pump drive gear When found three steps on the keyway are not processed; the second is from the town of Qianjiagang Sin Star Village in the installation of a multi-cylinder engine third piston retainer and found that the piston retainer groove is not open; the third is Huang Jing town