名词
中文翻译：外部轮廓直径
同义词：
["外径，外圆直径例句：1. The machine's external profile diameter is 20 cm.（这台机器的外径是20厘米。）2. The new model has a larger external profile diameter than the old one.（新款的外径比老款的要大。）"]
例句：
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1. The machine's external profile diameter is 20 cm.
这台机器的外径是20厘米。
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2. The new model has a larger external profile diameter than the old one.
新款的外径比老款的要大。
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3.The manufacturer claims that the product meets the required external profile diameter standards.
制造商声称该产品符合所需的外径标准。