如图所示用三块完全相同的两面平行的玻璃板组成一等边三角形.由红光和蓝光组成的一细光束平行底面bc从ab面射入由ac面射出则从ac面射出的 Template




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tomski如图所示用三块完全相同的两面平行的玻璃板组成一等边三角形.由红光和蓝光组成的一细光束平行底面bc从ab面射入由ac面射出则从ac面射出的 coloring