名词短语
中文翻译：外径圆
同义词：
['outer diameter', 'outer radius例句：1. The engineer calculated the outside diameter of the pipe to be 20 cm.（工程师计算了管道的外径为20厘米。）2. The outer diameter of the ring was 10 cm.（这个戒指的外径是10厘米。）3. The outer diameter is twice as large as the inner diameter.（外径是内径的两倍大。）']
例句：
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1. The engineer calculated the outside diameter of the pipe to be 20 cm.
工程师计算了管道的外径为20厘米。
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2. The outer diameter of the ring was 10 cm.
这个戒指的外径是10厘米。
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3. The outer diameter is twice as large as the inner diameter.
外径是内径的两倍大。