Unverified80% confidenceDecision RuleTime unknown
信号镜尺寸建议2×3英寸(约5×7.5cm)为平衡点:更小的1×1英寸虽轻便但反射光斑难以对准远距离目标,更大的4×5英寸重量增加且携带不便
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80%
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Long-term
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