roller bearing是什么意思 roller bearing怎么读
roller bearing的英文翻译是什么意思，词典释义与在线翻译
Noun:- bearings containing small metal balls
roller bearing的用法和样例
用作名词 (n.)
- Conic roller bearing is used for desirable bearing capacity.
园锥滚柱轴承，承载力大。 - Crankshaft bearings are double-row spherical roller bearings.
曲轴轴承为双列球面滚柱轴承。
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