radius 什么意思?

radius 什么意思?

radiusn.(pl. radii )半径; 半径范围(车轮的)辐条(用半径度量的)圆形面积【解】挠骨【物】辐射 线【无】径向射线; 辐射物【植】(菊科的)边花(昆虫的)径脉The police searched all the fields and woods within a radius of two miles. 警察搜查了半径两英里范围内所有的田野和森林。习惯用语outside the radius of knowledge 在知识范围之外within the radius of knowledge 在知识范围之内收起更多词典展开更多词典 现代英汉词典radiusn.-dii, -diuses半径；半径范围They searched within a radius of one mile from the school. 他们在学校周围1英里内寻找。 简明英汉词典radiusn.半径, 范围, 辐射光线, 有效航程, 范围, 界限 柯林斯英语大词典查词历史My favorite group is No Doubtdoubtgroupradius[�0�4re�0�1d�0�1�0�5s] na straight line joining the centre of a circle or sphere to any point on the circumference or surfacethe length of this line, usually denoted by the symbol rthe distance from the centre of a regular polygon to a vertex (long radius) or the perpendicular distance to a side (short radius)the outer and slightly shorter of the two bones of the human forearm, extending from the elbow to the wrista corresponding bone in other vertebratesany of the veins of an insect's winga group of ray florets, occurring in such plants as the daisyany radial or radiating part, such as a spoke.(as modifier)the lateral displacement of a cam or eccentric wheela circular area of a size indicated by the length of its radiusthe police stopped every lorry within a radius of four miles the operational limit of a ship, aircraft, etc柯林斯词典说明收起更多词典展开更多词典 WordNetradiusradii radiuses Noun1. the length of a line segment between the center and circumference of a circle or sphere(synonym) r(hypernym) length(hyponym) semidiameter(part-holonym) diameter, diam2. a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)(hypernym) straight line3. a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"(hypernym) region, part4. the outer and slightly shorter of the two bones of the human forearm(hypernym) arm bone(part-holonym) forearm5. support consisting of a radial member of a wheel joining the hub to the rim(synonym) spoke(hypernym) support(part-holonym) bicycle wheelWe agree to comply with the copyright notice and statements mentioned in WordNet license.