单词	sliding gear
释义	sliding gear noun : a change gear in which speed changes are made by sliding gear wheels along their axes so as to place them in or out of mesh Word History Etymology sliding entry 2
随便看	focal points focal ratio focal spot focal-plane shutter focaler focalest focalisatia focalisation focalisations focalise focalised focalises focalising focalization focalizations focalize focalized focalizes focalizing focaller focallest focallier focalliest focally Foch

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