registration length
登记的长度
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Thefirst registration period has a maximum length of 12 weeks and represents, froma sporting point of view, the main period.
第一个注册期最长为12周，从竞技角度来看，它相当于主注册期。
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The optical pattern is spatially uniform, meaning that no positional registration of LEDs is required along its length.
ENGADGET: 3M Uniformity Tape improves lighting quality on LED edge-lit LCDs, lowers production costs
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