- 更多网络例句与近似圆形的相关的网络例句 [注：此内容来源于网络，仅供参考]
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A simple way is used to approximate the curvilinear metal boundary of circular groove guide.
用一种简单方法来近似圆形槽波导的曲线金属边界。
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And the thesis is divided into 4 parts.In the first part, the development of technology on Adjustable Speed AC Dirve is introduced. And the theory of DTC is analyzed. Besides the two classic DTC strategy, the hexagon flux track and approximate circle flux track controlling system, the thesis introduces some DTC strategies modified and some new controlling arithmetics.
论文共分为四个部分：第一部分介绍了交流调速技术的发展，分析了异步电机直接转矩控制的基本原理，除六边形磁链和近似圆形磁链两种经典的DTC控制之外，还介绍了改进型DTC及其他新型的控制算法。
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Reference to the southwest Pacific island southeast corner of Tasmania to the Antarctic continent and the Indian Ocean to the warp boundaries, southeast to the southern tip of South America through the Cape Horn and the Atlantic meridional boundaries, North via the Bering Strait and the Arctic Ocean Link, N Panama Canal and Magellan Strait, Drake communication across the Atlantic. W Strait of Malacca and Sunda Strait links the Indian Ocean, the total approximate contour round.
范围 太平洋西南以塔斯马尼亚岛东南角至南极大陆的经线与印度洋分界，东南以通过南美洲最南端的合恩角的经线与大西洋分界，北经白令海峡与北冰洋连接，东经巴拿马运河和麦哲伦海峡、德雷克海峡沟通大西洋，西经马六甲海峡和巽他海峡通印度洋，总轮廊近似圆形。
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Plyfil composite yarns is similar to two-ply yarn structures.
纺纱方法决定着成纱结构，成纱结构与纱线组成原料又决定了纱线的性能。sirofil复合纱线纺纱时长丝与短纤纱须条的间距及长丝的张力，plyfil复合线加工时二组分间并线张力对成纱结构及纱线的性能有着重要影响。sirofil复合纱的成纱横截面呈近似圆形结构，长丝位于成纱的一侧；纵向呈有"股线螺纹"的单纱外观。plyfil复合线具有类似于传统双股线的横截面和纵向外观。
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At the target surface impinged by the synthetic jet, the temperature field is symmetric with the lowest filed in center. The heat transfer coefficients also take on the same trends with centrosymmetric waves, which means that the best cooled area is the stagnation.
在冲击靶板上，整个冲击区域呈现出中心温度最低的近似圆形的对称性分布，对流换热系数曲线呈现出中心对称的波峰分布形状，表明自耦合射流驻点区换热最强。
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The second part was to test the appearance, ingredient analysis, surface potential, thermal conduction properties, and magnetism of the nano composite fluid prepared from the parameters. The experiment found that unoxidized particles, Ag, Cu, Fe, and Ni appeared round. If combined with oxygen in water as oxides, the nano particles would grow toward certain directions. In copper/iron nano composite fluid, FeO appeared cubic, Cu2O appeared coniferous. In silver/iron nano composite fluid, FeO was polygonal. In dielectric potential detection, the nano composite fluid was likely to aggregate and deposit, except for silver/iron set. In other sets, the pH of silver/cobalt nano composite fluid was 7, surface potential was 21.21mV; the pH for silver/nickel nano composite fluid was 6.5, surface potential was 21.04mV; the pH for copper/iron nano composite fluid was 7, surface potential was -30mV. The fluid particles of the three sets could all maintain suspension of 2 weeks or more. For thermal conduction, the silver/nickel, nano composite fluid showed the best thermal conduction. Under temperature of 30℃ fluid weight conduction of 0.4%, the thermal conduction increase was 26%. For magnetic detection, except for silver/iron nano composite fluid, the nano particles of other three sets were paramagnetic, and all four sets were soft magnetic nano composite materials.
第二部分。将由较佳制备参数所产出的奈米复合流体，进行形貌外观、成分分析、表面电位及热传导性质实验与磁性检测；在奈米颗粒的形貌部分，经实验发现Ag、Cu、Fe、Ni等未氧化的颗粒皆呈现近似圆形，而若与水中的氧结合形成氧化物，奈米颗粒则会朝特定方向成长，在铜/铁奈米复合流体中FeO为四方体结构、Cu2O的颗粒是针叶状，在银/铁奈米复合流体中FeO则为多边形结构；而介面电位检测方面，结果显示经本制程所产出的奈米复合流体除银/铁奈米复合流体这一组较容易聚集沉淀外，其他三组中银/钴奈米复合流体的pH值为7，表面电位为21.21mV，银/镍奈米复合流体的pH值6.5表面电位为21.04mV而铜/铁奈米复合流体的pH值为7时表面电位约在-30mV，且此三组流体颗粒皆能维持悬浮性2周以上，悬浮性较佳；热传导实验部分，四组奈米复合流体中以银/镍奈米复合流体在增进热传上效果最佳，在温度30℃及流体重量浓度0.4﹪条件下热传导系数增进达26﹪；磁检测方面，除了银/铁奈米复合流体外，其他三组奈米颗粒皆属顺磁性，且这四组奈米复合材料都是属软磁性。
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A Eurasian mint having small lilac-blue flowers and ovate or nearly orbicular leaves that yield a useful, aromatic oil.
薄荷一种欧亚薄荷，长有丁香紫蓝色花朵和卵形或近似圆形的叶子，其叶子可生产出一种有用和芳香的油
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The transverse section of lotus monofil is circular or similar circular.
莲单丝纤维的横截面呈圆形或近似圆形。
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Four weeks later, in the baicalin group, some spindle-shaped UCB-MSCs began to present shrinkage, with slender processes on the cell edge, and some UCB-MSCs tended to be spherical-, conical-, and triangle-shaped appearance, with many slender processes on the pseudopodia.
细胞形态学观察：脐血单个核细胞培养第2~3天开始贴壁生长，2周左右达高峰，3周后细胞生长达80%~90%融合，此时脐血原始间充质干细胞呈较均一的长梭形。4周后，黄芩苷组原来呈梭形的胞体一部分发生收缩，细胞边缘出现细的突起；一部分胞体逐渐近似圆形、锥形、三角形，伪足有多个细长突起。
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Methods From August 1993 to October 1997, according to the location and size of the lesion, adjacent single or double reverse tongue-shaped skin flaps were des igned to repair the defects of head, face, limb and shoulder in 31 cases, and th e donor sites were closed directly.
1993年8月？1997年10月，依据创面的部位及大小，在其邻近设计并制作单侧或两侧反向舌形皮瓣，修复头面、四肢及肩部近似圆形的创面31例，供瓣区多数可直接缝合。
- 更多网络解释与近似圆形的相关的网络解释 [注：此内容来源于网络，仅供参考]
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hip joint：髋关节
耻骨支和耻骨联合下缘围成.骨盆的主要功能是支持体重和保护盆腔脏器.在女性,骨盆还是胎儿娩出的产道.女性骨盆外形宽短,骨盆上口近似圆形,较宽大,骨盆下口和耻骨下角较大.1.髋关节(hip joint) 由髋臼和股骨头构成.其结构特点是:股骨头关节面约为球形的2/3,
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Variola virus：天花病毒
天花由同名病毒--天花病毒(Variola virus)引起. 下图中近似于圆形的两个小黑点就是天花病毒粒子. 天花之所以在历史上造成如此之大的伤害与天花的特性密切相关. 天花病毒繁殖速度快,而且是通过空气传播,传播速度惊人.
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craton：克拉通
垂直运动速度缓慢、幅度小,沉积作用广泛而较均一,岩浆作用、构造运动和变质作用也都比较微弱. 地台区的外形呈近似圆形,直径可达数千千米,是地壳大地构造中相对稳定的构造单元. 在文献中有"克拉通"(Craton)一词,意义大致与此相当.
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maar：低平火山口
当火山活动时,炽热的岩浆在上升过程中如遇到水体(地下水或地表水)会立即发生爆炸,产生巨大的向上冲击力,造成上覆地层的挠曲、破裂、坍塌等一系列过程,形成大小不等的近似圆形的低平火山口(maar)及基浪堆积物(basesurge),