| 单词 | 半径 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔Schwarzschild radius〕The radius of a collapsing celestial object at which gravitational forces exceed the ability of matter and energy to escape, resulting in a black hole.史瓦西半径：收缩中星体的半径，在此半径下，重力超过物质和能量逃逸的能力，从而形成了黑洞美国传统〔cardioid〕A heart-shaped plane curve, the locus of a fixed point on a circle that rolls on the circumference of another circle with the same radius.心脏线：一种心形的平滑曲线，圆周上一固定点绕另一具有相同半径的圆的圆周转动的轨迹美国传统〔cruiser〕One of a class of fast warships of medium tonnage with a long cruising radius and less armor and firepower than a battleship.巡洋舰：一种中等吨位的快速战舰，有很长的巡航半径，但比战列舰装甲少，火力小美国传统〔cruising radius〕The maximum distance that a ship or aircraft can travel away from and back to its point of origin without refueling.巡航半径：船只或飞机无需加油就能够离开并返回原出发点的最大距离美国传统〔curvature〕The reciprocal of the radius of a circle.曲率：一个圆半径的倒数美国传统〔diameter〕The diameter measures twice the radius.直径是半径的两倍。剑桥高阶〔given〕Given that the radius is 5 meters, find the circumference.假定半径为五公尺，试求其圆周。文馨英汉〔given〕The given radius being 4 ft., find the circumference.已知半径为4英尺,求周长。英汉大词典〔quadrant〕The plane area bounded by such an arc and two perpendicular radii.四分之一圆，扇形体：由九十度弧与两条垂直的半径围成的平面图形美国传统〔radial〕A radial part, such as a ray, spoke, or radius.放射部：辐射状的部分，如光线、轮辐或半径美国传统〔radial〕Moving or directed along a radius.沿着或向着半径移动的美国传统〔radius〕A line segment that joins the center of a circle with any point on its circumference.圆半径：将圆心与圆周上任一连接起来的线段美国传统〔radius〕A line segment that joins the center of a sphere with any point on its surface.球半径：将心与球面上任一点起来的线段美国传统〔radius〕He indicated a semicircle with a radius of about thirty miles.他标示出了一个半径大约为30英里的半圆形。外研社新世纪〔radius〕He indicated a semicircle with a radius of about thirty miles.他标示出了一个半径大约为30英里的半圆形。柯林斯高阶〔radius〕Measure the radius of the circle.测量圆的半径。韦氏高阶〔radius〕The radius of this wheel is 30 cm..这个轮子的半径是30厘米。剑桥高阶〔radius〕This wheel has a radius of 30 cm.这个轮子的半径是30厘米。剑桥高阶〔secant〕The ratio of the length of this line to the length of the radius of the circle.正割值：这条线的长度与圆半径之比美国传统〔sector〕The portion of a circle bounded by two radii and the included arc.扇形：由两条半径和其间的弧组成的圆的一部分美国传统〔semidiameter〕The apparent radius of a celestial body when viewed as a disk from Earth.半径：一般指从地球上看到的象圆盘的球形天体的二维平面半径美国传统〔throw〕The radius of a circle described by a crank, cam, or similar machine part.（曲轴的）半径：曲柄、凸轮或类似机器部件形成的圆的半径美国传统〔unity〕In a table of natural sines the radius of the circle is regarded as unity.圆的半径在正弦真数表中被视作1。英汉大词典〔within〕Within a five mile radius of Ollerton there are several pubs and restaurants.奥勒顿半径五英里范围之内有一些酒吧和餐馆。朗文当代The diameter measures twice the radius.直径为半径的两倍。剑桥国际The given radius being 4 ft., find the circumference. 已知半径为四英尺，求周长。译典通The radius of this wheel is 30 cm.该轮子的半径是30厘米。剑桥国际This wheel has a radius of 30 cm.该轮子的半径是30厘米。剑桥国际 |
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