排气管螺丝 vent-pipe whorl
气管螺旋丝 spiral thread of trachead tube
排气管支架螺丝未扳紧 The bracket of exhaust pipe
安装排气管支架并拧紧螺丝。
左右旋转机构：更换置物方向时方便调整，仅调整螺丝即可，不需要换气管及磁簧开关。
The left-right rotating institutions: replacement stowage direction convenient adjustment, only adjustment screws can, do not need to change the trachea and magnetic reed switch.
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