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单词
ball bearing
释义
ball bearing
(also
ball-bearing
)
Word forms:
plural
ball bearings
N-COUNT
(滚球轴承的)滚珠,钢球
also ball-bearing. Ball bearings are small metal balls placed between the moving parts of a machine to make the parts move smoothly.
(滚球轴承的)滚珠,钢球
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更新时间:2024/10/23 1:38:30