表盘(24)在其背面具有遮光板(22)。

A dial (24) has a light shielding plate (22) on its back.

youdao

为什么我们被要求在飞机起飞和降落的时候打开遮光板呢？

Why are we required to pull up airplane window shades during take-off and landing?

youdao

飞机起飞降落时为什么要打开遮光板调整靠背收回小桌板？

Why are we required to pull up airplane window shades during take-off and landing?

youdao

飞机起飞降落时为什么要打开遮光板调整靠背收回小桌板？

Why are we required to pull up airplane window shades during take-off and landing?

youdao