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swoptical:但是像阿贝数这样的参数,分等级的意义不是特别大吧,成都光明的玻璃阿贝数一般是0.8%,公差分析上你没得选,只能0.8%, XfmwVjy 而折射率公差又能保证在50个单位以内,因此更宽松的折射率公差也是没有意义的 c[e}w+uB (2015-05-06 09:04) BerwI 7!=
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