ordinary cut普通掘进掏槽法ordinaryadj.平凡的；普通的；平淡的ordinary hydrogen(普通的)氢ordinary students普通学生ordinary-frozen普通低温ordinary hand tap常规手动开关ordinary incident普通小事ordinary V-belt普通V带ordinary interest普通利息ordinary function普通函数ordinary spinning普通旋压ordinary business[经] 普通业务