名词
中文翻译：可动中心
同义词：
['movable axis', 'movable point']
例句：
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1.The machine's movable centre is located at the bottom of the table.
这台机器的可动中心位于桌子底部。
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2.In order to adjust the position of the movable centre, we need to move the screws.
为了调整可动中心的位子，我们需要移动螺丝。
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3.The engineer carefully adjusted the movable centre to ensure smooth operation.
工程师仔细调整了可动中心，以确保操作顺畅。