...的比值87 次要竞赛区（secondary playing area）指介于主要竞赛区及实际障碍物(如栅栏)间之地区88 灯具遮蔽角（shielding angle (of a luminaire)）指介于通过光源中心水平线及可被人眼看见之第一线裸光二者间之夹角89 聚光灯（spotlight）指具有极窄光束角用...
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lamp shielding angle 电灯遮光角 ; 遮光角 ; 照射灯功率控制
louver shielding angle 遮板遮光角 ; 遮板
Shielding Angle Of Luminaire 灯具遮光角
zero shielding angle 零保护角
Terrain shielding angle 地形遮蔽角
louver r shielding angle 遮板遮光角
Shielding failure is the main reason to cause flashover of the UHV transmission line, so that the shielding angle of grounding wires should be reduced, especially in mountain area.
绕击是造成特高压线路跳闸的主要原因，尤其在山区应适当减小地线保护角。
Through the introduction of the adjacent object direction angle and shielding angle, the ultimate adjacent objects are identified close to the direction of the adjacent object mask.
通过引入相邻对象方向角和屏蔽角，对方向接近的相邻对象进行屏蔽，实现对确定相邻对象方法的改进。
Changing neither the length of overlapping gap nor the Angle of turning corner can assure the rise in shielding effectiveness, rather the specific changing trend is related to frequency range.
改变车身缝隙搭接部分的长度和拐角角度并不能保证提高其屏蔽效能，具体变化趋势与频率范围有关。
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