diameter 英 [daɪˈæmɪtə(r)] 　 美 [daɪˈæmɪtɚ]

diameter

diameter　 英 [daɪˈæmɪtə(r)] 美 [daɪˈæmɪtɚ]

n. 直径　

名词复数:diameters　

the diameter of a tree trunk　树干的直径
The dome is 42.3 metres in diameter.　这个穹顶直径为 42.3 米。

  • It's good to know where the diameter of a circular object is if you have to split a cookie between two 5-year-old kids. Think of a round chocolate chip cookie. The diameter of the cookie is a line that divides the cookie into two equal halves, through the center of the cookie.
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  • n. 直径

  • 1. the diameter of a tree trunk

    树干的直径

  • 2. The dome is 42.3 metres in diameter.

    这个穹顶直径为 42.3 米。

  • diameter (n.) late 14c., from Old French diametre, from Latin diametrus, from Greek diametros (gramme) "diagonal of a circle," from dia- "across, through" (see dia-) + metron "a measure" (from PIE root *me- (2) "to measure").
diam·eter / daɪˈæmɪtə(r) ; NAmE daɪˈæmɪtər / noun 1 a straight line going from one side of a circle or any other round object to the other side, passing through the centre 直径；对径 ◆ the diameter of a tree trunk 树干的直径 ◆ The dome is 42.3 metres in diameter. 这个穹顶直径为 42.3 米。 ☞compare radius  (1 ) 2 ( technical 术语 ) a measurement of the power of an instrument to magnifysth 放大率；放大倍数 ◆ a lens magnifying 300 diameters (= making sth look 300 times larger than it really is) 放大 300 倍的透镜 diameter diameters diam·eter / daɪˈæmɪtə(r) ; NAmE daɪˈæmɪtər /
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词频排名 noun:5311
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