用一种简单方法来近似圆形槽波导的曲线金属边界。
A simple way is used to approximate the curvilinear metal boundary of circular groove guide.
利用数学形态学对含有胎儿头部轮廓的医学图像进行预处理，提取近似圆形的胎儿大脑轮廓的骨架。
Medical Images including head outline are preprocessed by using mathematical morphology, and the skeleton of fetus' head outline with an approximate rotundity can be extracted.
目的：为头皮肿瘤、瘢痕等切除后形成的近似圆形的头皮缺损，寻求一种较简便安全、损伤小、无秃发的即刻修复方法。
Objective To seek a simple, safe, less trauma, imbaldness and effective method for the instant repair of scalp defects either after the excision of a head tumor, or cicatricial alopecia areata.
铸造冠周围组织的影像在T1、T2、PD、GRE畸变为近似圆形的低信号金属伪影，在GEEPI畸变为大范围的不规则的片状信号失落；
Metal artifact around the crown was found on all images with different size and shape. In the T1, T2, PD, GRE images, the artifacts were circular. While in the GE EPI images which were patch-shaped.
它的运行轨道为近似的圆形，以229天为周期，围绕着两个恒星作轨道运行，这个行星位于这个系统的可居住区之外——所谓可居住区，那里有液体水，正像我们所知道的那样，那里可能会有生命的存在。
Traveling on a nearly circular, 229-day orbit around both host stars, the planet lies outside the system's habitable zone—the region where liquid water, and thus life as we know it, could exist.
通常会选择圆形或近似的圆形。
针对目前圆形断面均匀流水深计算公式存在计算误差大、适用范围小的弊端，欲提出一种新的近似计算公式。
For present shortcoming of water depth of uniform flow in circular section, which is great calculating error and small application scope, this paper desired to get a new approximate formula.
这种算法在分解中利用多边形近似寻找出所有可能的分割线，结合血细胞是圆形的假设确定最佳分割线。
Polygonal approximation is used to find out all the possible split paths. And the optimal split path is chosen according to the assumption that blood cells are in round shapes.
本文主要讨论圆形回线发射源情形，编制出相应的近似反演程序，并对一维层状理论模型和实测资料进行反演试验。
We discussed the case of a circular transmitting loop, and developed a corresponding approximate inversion program which has been tested for 1 D layered Earth models and real data.
【目的】针对目前圆形断面均匀流水深计算公式存在计算误差大、适用范围小的弊端，欲提出一种新的近似计算公式。
Objective for present shortcoming of water depth of uniform flow in circular section, which is great calculating error and small application scope, this paper desired to get a new approximate formula.
给出一种无互耦情况下圆形阵列天线零点综合的有效方法，分析了互耦对零点综合的影响，并采用互阻抗近似的方法在考虑互耦时对零点进行控制。
A null synthesis method for circular array without coupling is presented, and the effects of coupling to null are also analyzed by the method of moments.
本文对冷旋压近似椭圆形封头代替标准椭圆形封头进行了分析。
In this paper an analysis of substitution of cold spinning approximate ellipsoidal heads for Standard ellipsoidal head is presented.
顶体下方为细胞核，细胞核近似卵圆形。
Under the acrosome, the nucleus is egg shaped with high density.
顶体下方为细胞核，细胞核近似卵圆形。
Under the acrosome, the nucleus is egg shaped with high density.
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