名词
中文翻译：九英寸等效物
同义词：
['nine-inch rule', 'nine-inch standard']
例句：
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1.The printer's nine-inch equivalent is the size of a typical letter.
打印机的九英寸等效物是一张普通信纸的大小。
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2. The engineer used a nine-inch equivalent to calculate the dimensions of the new machine.
工程师使用九英寸等效物来计算新机器的尺寸。
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3.The nine-inch equivalent is often used in architectural drawings to standardize measurements.
九英寸等效物常用于建筑绘图中，以标准化测量。