When the outside diameter of cylinder is infinite, the solution of cylinder problem will be made in infinite medium.
当圆筒外径为无穷大时，便得到无限介质中的筒腔问题的解。
The tubular connection of the frame components to be fitted together shall have a minimum length of two times the outside diameter.
连接杆件的管状连接，其最小长度应该是其外径的两倍。
When grinding the bearing ring, the outside diameter of it was taken as locating datum to process the outer raceway with the assistance of electromagnetic centerless clamper.
轴承环磨削过程中，以轴承环外径作为定位基准，在电磁无心夹具上磨削轴承环外滚道。
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