1) enclosed bearing
封闭式轴承
2) closed type thrust bearing
封闭式推力轴承
3) prelubricated sealed ball bearing
预润滑封闭式球轴承
4) sealed bearing
密封式轴承
5) closed type thrust bearing
闭式推力轴承
6) capped bearing
闭型轴承
补充资料：窗型动脉导管未闭
窗型动脉导管未闭
window-shaped patent ductus arteriosus
其未闭的动脉导管几乎没有长度，肺动脉与主动脉紧贴，它们之间的沟通有如瘘管或类似缺损，其直径往往较大。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条