名词
中文翻译：针中心
同义词：
['pinhole center', 'pinhole center of the lens例句：1. The pin center is where the needle goes through the fabric.（针中心是针穿过布料的地方。）']
例句：
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1. The pin center is where the needle goes through the fabric.
针中心是针穿过布料的地方。
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2. The pin center is a small hole in the center of the needle.
针中心是针的中心小孔。
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3. The pin center is important for sewing because it helps keep the needle from slipping out.
针中心对于缝纫很重要，因为它帮助保持针不滑出。