| 释义 |
diameter
UK [daɪ'æm.ɪ.tər] US [-ə.tˌɚ] noun countable or uncountable
■(the length of) a straight line that reaches from one point on the edge of a round shape or object, through its centre, to a point on the opposite edge 直径•The diameter measures twice the radius.直径是半径的两倍。 •The pond is six feet in diameter.这个池塘的直径为六英尺。 |