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- 轴颈机械的转动轴或轮轴中由轴承所支撑的部分
The part of a machine shaft or axle supported by a bearing.
- 悬臂仅在一端被支撑的一个突出结构,如一段横梁
A projecting structure, such as a beam, that is supported at only one end.
- 拱形建筑物由柱、桥墩或台柱支撑的一系列拱
A series of arches supported by columns, piers, or pillars.
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海词词典,十七年品牌