名词
中文翻译：孔距
同义词：
['hole size', 'hole spacing', 'hole diameter']
例句：
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1.The drill bit needs to be precisely aligned with the bore spacing of the material.
钻头需要精确地与材料的孔距对齐。
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2. The engineer calculated the optimal bore spacing for the machine's internal components.
工程师计算了机器内部组件的最佳孔距。
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3.The new design reduces the bore spacing between the gears, improving efficiency.
新设计减少了齿轮之间的孔距，提高了效率。