双列球面球轴承
double-row spherical ball bearing
外球面球轴承
Insert Bearing with Housing
insert bearing
outer spherical ball bearing
曲轴轴承表面
crankshaft bearing surface
八角形离轴非球面
octagonal off-axis aspheric surface
地球非球形摄动
earth oblateness
nonspherical perturbation
地球非球形引力摄动
Earth nonspherical gravitation perturbation
离轴非球面
off-axis aspheric surface
Off-axis Aspheric
off-axis asphere
Off axis aspherics
平面非球面透射校正镜
plano-aspheric transmitting corrector
月球非球形
moon non-spherical perturbation
大曲率球面面形检测
Testing of large curvature spherical surface
螺旋槽球面轴承
spiral grooved spherical bearing
气体静压球面轴承
air static pressure ball bear
球形外表面轴承套圈
spherical-surface bearing rings