Turn on and cut function details: The table shows the turn on and cut situations as pointer moves deasil, and the function is opposite while the pointer moves widdershins.

表中描述的开关功能是表示：仪表压位于小刻所具有的开关功能，即压从小刻开始顺动的开关状态，当压逆转动，实现的开关功能相反。