词汇	segmental gear
释义	segmental gear 扇形齿轮
随便看	upper-middle upper-middlebrow uppermiddle-class upper-middleclass upper middle class upper-middle class uppermore uppermost upper-middle-class upper -middle class uppe rmiddle class Upper middle class economic status upper middle classes upper-middle-income upper-middle-income economics upper-middle-incomes upper/middle/lower reach upper middle peasant upper-middle reaches of Yangtze River Upper Middle Rhine Valley Upper middle Rhine Valley,Germany upper-middles Upper-middle thoracic pedicle Uppermid face facture upper mid plate