名词
中文翻译：纵向比较器
同义词：
['longitudinal comparator', 'longitudinal comparator', 'longitudinal comparator']
例句：
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1. The engineer used a longitudinal comparator to measure the distance between the two pieces of metal.
工程师使用纵向比较器测量两块金属之间的距离。
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2.The longitudinal comparator was used to compare the sizes and shapes of different parts of the machine.
纵向比较器被用来比较机器不同部分的尺寸和形状。
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3. The longitudinal comparator proved to be an effective tool for inspecting the quality of the welds.
纵向比较器证明是一种有效的工具，用于检查焊缝的质量。