名词
中文翻译：直线
同义词：
['line', 'line length', 'straightline']
例句：
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1. The engineerused a ruler to measure the line trig of the building.
工程师用尺子测量了建筑物的直线度。
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2. The carpenter measured the line trig ofthe door before installing it.
木匠在安装门之前测量了门的直线度。
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3.The surveyor used a laser level toensure the line trig was accurate.
测量师使用激光水平仪确保直线度准确无误。