单项选择题
对标称透射比分类为UV-2的镜片,其可见光谱区透射比τV及紫外光谱区透射比τSUVA的技术要求应为()
A.τV > 80%,τSUVA ≤ 1%
B.τV > 80%,1%<τSUVA ≤ 5%
C.τV > 80%,1%<τSUVA ≤ 10%
D.τV > 80%,10%<τSUVA ≤ 30%
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单项选择题
A.τV > 80%,τSUVA ≤ 1%
B.τV > 80%,1%<τSUVA ≤ 5%
C.τV > 80%,1%<τSUVA ≤ 10%
D.τV > 80%,10%<τSUVA ≤ 30%
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