翻译
three-centered arch
释义
- 三心拱
英英释义
Noun
1. a round arch whose inner curve is drawn with circles having three centers
收起英英释义
行业词典
煤炭
三心拱 顶部由三段圆弧构成的拱碹。
- 释义
- 英英释义
- 行业词典
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三心拱 顶部由三段圆弧构成的拱碹。