Set up on the roof Siphon rain bucket, the contactpiece of roofing material should be and the corresponding material.
设置于屋面上的虹吸式雨水斗，其接触片材质应和屋面防水相对应。
2
When the protruding positive pole contacts the battery contact elastic piece, the protruding positive pole will contact the contactpiece.
当电池的凸出正极接触电池接触弹片时，凸出正极会接触到接触片。
3
When the top sleeve is reversing-rotated, the contactpiece leaves the inclining surface, the upright rod is bounced back upwards, and the motor circuit is cut off.