isosceles trapezium

常見例句

雙語例句

• Whatever the case, the shape of the cross-section of the said sphenoid part is either of an isosceles spherical trapezium or of any spherical quadrilateral.
  無論哪種情況，楔形體的橫截面形狀要么是有兩條邊相同的球形四邊形，要么是任意球形四邊形。
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