DOHC(双顶置凸轮轴)
all-position oxygen cutting machine
X射线同轴轮廓成像
In-line out line X-ray imaging
变速器主动齿轮轴
transmission drive gear shaft
变速箱行星齿轮轴
transmission planetary gear shaft
差动小齿轮轴
differential pinion shaft
差速器和行星齿轮轴紧固件
differential and planetary axle fastener