With the valve cover tilted up you can see the single overhead CAM shaft and valves.
与阀盖倾斜了，您可以看到单一的架空凸轮轴和阀门。
2
The equations is used whether roller is column or cone, cam is in spine or groove location, left or right helical, single head or many heads and how it is turning.
该方程适用于滚子为柱型或锥型凸轮为槽定位或脊定位、单头或多头、左旋或右旋、上转或下转的情况。
3
The principle of cam testing with single gauge head and double gauge heads is analyzed and the measurment method with single gauge head in engineering practice is determined.