圆的

METHODS: The endodontic instrument was assumed as a metal conical bar, the normal stress of bending loads and the shear stress of torsional loads were calculated with the knowledge of mechanics , the relations between stress and such parameters as angle and radius of canal curvature, radius of instrument, polar moment of inertia, metal elastic modulus were analyzed, the criteria for yielding and fracture of the instrument were discussed .

将根管器械刃部假设为截面为圆的金属细锥杆，利用材料力学及断裂力学的原理与方法，分别计算根管器械在弯、扭载荷下的应力分布，分析应力与根管弯曲角度、根管弯曲半径、器械直径、器械横截面极惯性距、金属弹性模量等参数的确切关系；探讨器械屈服、断裂失效的准则。

The closure is innovative, technological and typological, created by a sphere of steel, which is ergonomic and easy to use.

关闭的方法是有新意的，有技术含量的和独特的，它由一个圆的钢球控制，这符合人体工学，方便使用。

Common deviations are snippy, pointy muzzles lacking underjaw, narrow heads that are not wedge shaped and round and/or light eyes.

常见的偏离有snippy， pointy muzzles lacking underjaw，狭窄的、不是楔子的头部和圆的及淡色的眼睛。

One day, Wai finds that her mother is quite sick. She also discovers an unposted letter of her addressed to her first lover Ho.

秀慧找到母亲一封没寄出的信，是写给她的初恋情人浩谷的，她觉得既然是母亲的初恋，那一定是母亲心中未圆的梦。

Three important contents （the phase relation between stator voltage and magnetic flux, the magnetic flux of stator approximating a round and SVPWM overmodulation） are simulated, and the gotten simulation results all accord with theoretical analysis.

通过对定子电压与磁链的相位关系、磁链对圆的逼近及过调制现象三个重要内容的仿真研究，结果表明与理论分析都很一致，从而为SVPWM技术的实际应用及研究提供了一定的参考价值。

The "daVinci representation"(right panel of Figure 6) is a comprehensive visual representation of the scoliotic spine that illustrates the orientation of the planes of maximum curvature of the 3 spine segments in the transverse view. The center of the circular plot is the point where the central hip vertical axis (CHVA, CHVA is a true vertical bisecting the bi-femoral head axis, often considered to represent the physiological center of balance of the spine-pelvic unit) intersects the transverse plane and every arrow radiating from the center represents a spine segment (PT, MT, and TL/L).

圆的圆心是位于髋中心的Z轴与横断面相交点(CHVA，CHVA是双侧股骨头连线重点的垂线，通常作为脊柱-骨盆单元生理平衡的中点)及每个箭头发自表示脊柱节段的中心。

With rotational invariance of circle, image was divided into different sectorial sub blocks in polar coordinates, and the sum of regional pixels was taken as sector eigenvalue. Then a normalized feature space by norming sector feature set was got.

以圆的旋转不变特性为基础，在极坐标下将图像分割为不同的扇形子块，并将各子块区域灰度和作为表示扇形子块的特征，然后对子块特征集进行归一化，所得的归一化扇形特征集作为特征选取的空间。

Sirian matrixes are round; hence the round architecture of Mosques or other buildings of the Middle East.

天狼星的矩阵是圆的；因而清真寺或中东的建筑物的结构是圆形的。

Her face was a shade too long and narrow, but this shortcoming was amply compens at ed by an at tractive mouth, a shapely chin -neither too pointed nor too round-and long,, wavy hair hanging loosely over her shoulders

也是一张稍显得狭长了些的脸庞，可是那十分可爱的红嘴唇，不太尖也不太圆的下巴，以及那一头烫成波浪形松松地齐到耳根的长头发，却把脸庞的狭长&病&完全补救了。

Somewhere or other I think it is in the preface of Saint Joan-Benard Shaw remarks that we are more gullible and superstitious today than we were in the Middle Ages, and as an example of modern credulity he cites the widespread belief that the earth is round.

记得在什么地方-我想大概是在《圣女贞德》的前言中萧伯纳写道，我们现今的人比中世纪的人更易容骗和更相信迷信。他举出了一个现代人轻信的例子是，人们普骗都相信，地球是圆的。

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。