octagon 英 [ˈɒktəgən] 　 美 [ˈɑktəgɑn]

octagon

octagon　 英 [ˈɒktəgən] 美 [ˈɑktəgɑn]

n. 八边形，八角形　

名词复数:octagons　

Six identical triangles can be formed by drawing two straight lines through an octagon's center point.　经过八角形的中心画两条直线，能够得到六个一样的三角形。
Why It's Innovative: A hydraulic system built into the bridge's handrail allows it to retract and curl into an octagon.　创新点：这座桥的栏杆使用了液压驱动系统，使之能收缩卷曲成八边形。

  • An octagon is a shape with eight sides. Picture a stop sign, and you'll get the idea.
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  • n. 八边形，八角形

  • 1. Six identical triangles can be formed by drawing two straight lines through an octagon's center point.

    经过八角形的中心画两条直线，能够得到六个一样的三角形。

  • 2. Why It's Innovative: A hydraulic system built into the bridge's handrail allows it to retract and curl into an octagon.

    创新点：这座桥的栏杆使用了液压驱动系统，使之能收缩卷曲成八边形。

  • 3. on the second floor of "The octagon, " the centerpiece of the university's new science and engineering quad that opens later this year — will offer a stark contrast.

    未来的图书馆在“八边形”（学校新的科学和工程学四方院落中心的建筑，这个院落今年晚些时候开放）的第二层，它将和传统的图书馆提供一个鲜明的对比。

  • octagon (n.) 1650s, from Latin octagonos, from Greek oktagononos, literally "eight-angled," from okta- combining form of okto "eight" (see eight) + gonia "angle," related to gony "knee" (from PIE root *genu- (1) "knee; angle"). Also octogon (1650s), from French octogone.
octa·gon / ˈɒktəɡən ; NAmE ˈɑːktəɡɑːn / noun ( geometry 几何 ) a flat shape with eight straight sides and eight angles 八边形；八角形 ▶ oc·tag·on·al / ɒkˈtæɡənl ; NAmE ɑːkˈtæɡənl / adjective ◆ an octagonal coin 八角形硬币 octagon octagons octa·gon / ˈɒktəɡən ; NAmE ˈɑːktəɡɑːn / oc·tag·on·al / ɒkˈtæɡənl ; NAmE ɑːkˈtæɡənl /
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