名词
中文翻译：顶圈槽
同义词：
['top ringgroove', 'top ring recess', 'topring notch']
例句：
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1.The machine has a top-ring groovethat fits perfectly into the socket.
这台机器有一个与插座完美匹配的顶圈槽。
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2. The car's engine hasa top-ring groove that allows foreasy removal of the spark plugs.
汽车发动机的顶圈槽设计使得火花塞容易拆卸。
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3. The engineer carefully measured thedimensions of the top-ring groove toensure it would fit the new part.
工程师仔细测量了顶圈槽的尺寸，以确保新部件能够适配。