2.给空压机装上消音器
2. Install the muffler on the air compressor
(1)顶部红色按钮按下是关掉，往上空压机启动。
（1）Press the top red button is turned off, up is start up.
(2)右侧开关阀，竖着是抽气，横着是放气。
（2）The right side is open valve, vertical is pumping, sideways is
deflated.
5.操作流程
5.Operation
