名词
中文翻译：平行孔
同义词：
['parallel slot', 'parallel notch']
例句：
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1.The machine has a parallel hole for the bolts to go through.
这台机器有一个平行孔，螺栓可以穿过。
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2.The carpenter used a parallel hole saw to cut the wood.
木匠用一个平行孔锯子来锯木头。
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3. The engineer designed a parallel hole in the wall to accommodate the pipes.
工程师在墙上设计了一个平行孔以容纳管道。