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外文期刊>British journal of ophthalmology
>POSITIONS OF FOCAL LINES OF A SMALL CYLINDRICAL BEAM OF PARALLEL RAYS TRAVERSING THE CENTRE OF A THIN SYMMETRICAL DOUBLE CONVEX LENS
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POSITIONS OF FOCAL LINES OF A SMALL CYLINDRICAL BEAM OF PARALLEL RAYS TRAVERSING THE CENTRE OF A THIN SYMMETRICAL DOUBLE CONVEX LENS
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机译:POSITIONS OF FOCAL LINES OF A SMALL CYLINDRICAL BEAM OF PARALLEL RAYS TRAVERSING THE CENTRE OF A THIN SYMMETRICAL DOUBLE CONVEX LENS