在上壳所示位置装配导光柱，如图1。导光柱应注意装配方向，且装完效果应该

Assemble the light guide at the position shown on the upper shell, as shown in Figure 1. The light guide column should pay attention to the assembly direction, and the effect of the assembly should be consistent with the height of the shell surface, and it should not be recessed.

The guide column is assembled in the position shown in the upper shell, as shown in Figure 1. The guide column should pay attention to the assembly direction, and the finished effect should be highly uniform with the shell surface, not depression.

Assemble the light guide pillar at the position shown in the upper shell, as shown in Fig. 1. The light guide column should pay attention to the assembly direction, and the assembly effect should be consistent with the shell surface height, not concave.