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| 51. | Change Light Color |
| 改变灯光颜色 |
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| 52. | light signal head |
| 灯光信号机构 |
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| 53. | flash and show a light |
| 闪示灯光 |
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| 54. | sealed beam unit |
| 封闭式灯光组 |
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| 55. | the top-grade light and musical instruments |
| 一流灯光乐器 |
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| 56. | Cessna repellent |
| 降落信号灯光 |
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| 57. | Light Intensity at Distance |
| 灯光亮度距离 |
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| 58. | arc of visibility of light |
| 灯光能见度弧度 |
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| 59. | lighting engineer |
| 灯光控制员 |
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| 60. | approach lighting relay |
| 接近灯光继电器 |
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