圆环

The EAST Superconducting Tokamak is characterized by large volume, complicated structure, and high assembly precision, e.g. the gap in the three tori the tori of vacuum vessel (VV, thermal shield, and toroidal filed coil is 20 mm.

实验型先进超导托卡马克装置一种大型结构复杂高安装精密度的装置，如真空室、冷屏和环向场线圈三者圆截面的误差仅20毫米。

We herein report a 5-year-old girl, a sufferer of DDMS, scheduled for burr trephination.

这篇病例报告中，我们报告了一名诊断有戴克－大卫道夫－梅森症候群之五岁女童被安排接受头骨圆挫环锯术。

CD is cyclic oligosaccharides consisting of 7 glucose units connected by α-1,4-glycoside bonds. The CD molecule has the shape of a truncated cone.

环糊精是由7个葡萄糖单元以α-(1，4)-糖苷键相连而成的低聚糖，是略呈锥形的圆环状分子。

Based on Prandtl's momentum transportation, this paper calculates in detail the physical quantities such as eddy viscosities, and ratio of eddy viscosity to motion viscosity, total stresses with respect to relative position in three regions of viscous sub-layer, buffer layer, and main turbulent stream for non-Newtonian fluid flowing turbulently in ducts, which according to Karman's three layer models and measurement of fluid parameters in evaluation apparatus, discusses the influence of polymer drag reduction on flowing properties of non-Newton fluid, analyzes quantitatively principle of turbulent reduction phenomenon and condition of increasing reduction rate.

摘要以普兰德动量传递理论为基础，按照卡门的三层模型，通过室内模拟环道用0号柴油及加入减阻剂在圆管内的流动参数的测定，计算了非牛顿型流体管内湍流边界层的层流内层、过渡层、湍流中心的涡流粘度，涡流粘度与运动粘度比、总应力随相对位置的变化等定量参数，探讨了高分子减阻剂对非牛顿流体流动特性的影响，对湍流减阻现象的机理与增大减阻率的条件进行了定量分析。

Corolla 1-lipped; tube included or exserted, not hairy annulate inside; limb 5-lobed, with middle lobe circular or spatulate, occasionally 2-lobulate; lateral lobes 4, small.

花冠1－lipped；筒部包括或者外露，在里面没有毛有环；瓣片5浅裂，偶有，具中部裂片圆或匙形2；侧面裂片4，小。

It is found that the modified delaminate model in account of circumferential damage is able to well describe the progressive failure of the tubes subjected to axial compressive loading.

研究表明，基于环向损伤假设的分层断裂模型能更为准确地描述复合材料圆管轴压破坏行为。

In this paper, the finite element method is used to analyze the centri- fugal deformation of the currently-used hollow spherical rotor used in electrostatic gyro.

本文从静电陀螺捷联系统应用方案考虑，用有限元法分析我国现有结构静电陀螺空心转子离心变形，转子结构模型的内表面由赤道环、过渡圆和圆球面三部分组成，外表面为椭球面。

The micelle granules were accumulated in the guttate structure. Both liquid crystal phase and isotropic phase coexisted here. With the volatilization of solvent, the structures can change from disc or hexagon to cube with the variation of environment and interior reciprocity.

结果表明，在该薄膜中有被冻结的液晶滴状结构，随着溶剂的挥发，膜体系内氢键的种类和数目发生改变，壳聚糖胶束颗粒聚集成圆盘或六角状，体现为同心环堆积，一定时间后转变为立方环状结构。

The pressure roll cooperates with the building drum has a plurality of discs mutually slidable with respect to one another and on a shaft so as to extend radially with respect to the building drum, the discs being mutually uniformly shaped, and each disc having an interior part and an exterior ring surrounding the interior part and being rotatable about a ball bearing, the interior part having a recess whose sidewalls slide radially on the sidewalls of the shaft and whose length is greater than the corresponding size of the shaft.

压力辊合作与建立鼓有一个多元性的光碟slidable互相尊重，互相对竖井等，以延长呈辐射状与敬意，向建设鼓，碟片相互均匀状，每个圆盘有一个内部的一部分和一个外环周边内政部分，并正在旋转约球轴承，内政部分，有一个休会期间，其侧板滑动呈辐射状上侧板的竖井，其长度大于相应规模的竖井。

Only known species of Cycliophora; lives symbiotically attached to a lobster's lip by an adhesive disk and feeding by means of a hairy mouth ring; its complex life cycle includes asexual and sexual phases.

通过带有粘性的圆盘附着共生在龙虾的唇边，通过带毛的嘴环进食；其复杂的生命周期包括无性繁殖和有性繁殖阶段。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。