由于传统的前照灯配光设计停留在二维的层面上，设计周期长，且配光效果差，很难达到防眩目的要求。
The traditional ray′s distribution design based on 2 dimensions needs long period and is hard to meet anti-dazzling requirement.
由于传统的前照灯配光设计停留在二维的层面上，设计周期长，且配光效果差，很难达到防眩目的要求。
The traditional ray′s distribution design based on 2 dimensions needs long period and is hard to meet anti-dazzling requirement.
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