名词
中文翻译：主轴内油封
同义词：
['spindle inner seal', 'spindle inner gasket']
例句：
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1. The machine's spindleinner oil seal was damaged during the maintenance.
机器的主轴内油封在维护时损坏了。
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2. The engineer replaced the spindle inner oil seal with a new one.
工程师用一个新的替换了主轴内油封。
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3. The technician inspected the spindleinner oil seal to ensure it was functioning properly.
技术员检查了主轴内油封以确保它正常工作。