名词
中文翻译：每英寸线数
同义词：
['line per inch', 'line per millimeter', 'line per foot']
例句：
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1. The engineer drew a diagram showing the lines per inch on the wall.
工程师画了一张图，显示墙上每英寸的线条。
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2. The carpenter marked the lines per inch on the wood.
木匠在木头上标记了每英寸的线条。
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3. The painter used a ruler to measure the lines per inch for the ceiling.
画家用直尺测量天花板每英寸的线条。