名词
中文翻译：残余外部角度
同义词：
['remaining external angle', 'residual angle']
例句：
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1. The engineer calculatedthe residual external angle of the structure to be 20 degrees.
工程师计算了结构的残余外部角度为20度。
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2.The team used a computer program to calculate the residual external angle of the roof.
团队使用计算机程序来计算屋顶的残余外部角度。
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3. The researcher found that the residual external angle was due to the wind loading on the structure.
研究者发现残余外部角度是由于结构上的风荷载造成的。