名词
中文翻译：中等长度的孔洞
同义词：
['medium-sized hole', 'medium-sized opening']
例句：
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1.The drill bit is designed to create a medium-length hole in the wood.
钻头设计用来在木头上打出一个中等长度的孔。
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2. The carpenter used a chisel to make a medium-length hole for the bolts.
木匠用凿子在一块木板上打了一个中等长度的孔，以便安装螺栓。
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3.The engineer measured the diameter of the medium-length hole and calculated the necessary reinforcement.
工程师测量了中等长度孔的直径，并计算了所需的加固材料。