设置在所述照明器材中的一灯具有一纵轴，其大体上垂直于所述第一和所述第二罩壳的一移动方向。
A lamp disposed in the lighting fixture has a longitudinal axis that is substantially perpendicular to a direction of movement of the first and second housings.
设置在所述照明器材中的一灯具有一纵轴，其大体上垂直于所述第一和所述第二罩壳的一移动方向。
A lamp disposed in the lighting fixture has a longitudinal axis that is substantially perpendicular to a direction of movement of the first and second housings.
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