英语词汇“optional gear ratio”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	optional gear ratio
释义	optional gear ratio 英?[??p??nl ɡi? ?rei?i?u] 美?[?ɑp??n?l ɡ?r ?re?o] 释义可变齿轮速比
随便看	half value layer half-value layer(HVL) half-value layer meter half value layer meter half value life half value lyer Half-value method Half value method half-value period half value period half value thickness half(-value) thickness half-value thickness half-value width half value width half-vampire half vat half viaduct half-view half-virgin half-virgins half vision half viviparous half voile half-volley

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