名词
中文翻译：双圆规
同义词：
['two-circle caliper', 'two-circle ruler']
例句：
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1.The two-circle goniometer is used to measure the angle between two lines.
双圆规用于测量两条线之间的夹角。
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2.He measured the length of the wall with the two-circle goniometer.
他用双圆规测量了墙的长度。
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3.The engineer used a two-circle goniometer to check the accuracy of the measurements.
工程师用双圆规检查了测量的准确性。