Unverified90% confidenceDecision RuleTime unknown
购买镜架前需确认镜片尺寸参数（镜框宽-鼻梁宽-镜腿长，如52□18-140），镜框总宽应约等于脸宽，鼻梁数值需匹配鼻梁高度，网购时可参照现有合适眼镜的参数选择
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