Geardn.吉尔德gearn.传动装置；齿轮；排挡；工具；装备v.调整；使适应于；以齿轮连起gear mode core齿轮型芯gear clearance齿轮间隙gear vibration齿轮噪声gear shift rod变速杆gear-housing变速器壳体gearing ratios[经] 资本与负债的比率gearshift gear档位齿轮geargraduationn.齿轮变速gear materials齿轮材料gearing-down齿轮减速传动