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拱内弧起拱线 meaning in English

intrados springin line
intrados springing line
soffit springing

Related Words

  1. 弧拱
  2. 横向拱
  3. 缺口拱
  4. 拱石
  5. 向上拱
  6. 回廊拱
  7. 板拱
  8. 塌落拱
  9. 端拱
  10. 拱内测面
  11. 拱内弧半径
  12. 拱内面
  13. 拱抛物线
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