查询词典 conic polar

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。

To solve problems of the wheel interference and the linear speed change on grinding points which has an effeet on the grinding surface roughness,a polar-coordinate-based equal step interpolating method for the grinding point trace is presented.

为解决砂轮干涉及磨削点处线速度变化影响磨削表面粗糙度的问题，提出了极坐标下砂轮磨削点轨迹的等步长插补方法，该方法可应用于任何具有C1连续性的正则曲线的CNC磨削。

From the properties of Radon transform, the translation and rotation invariant is derived from the polar Fourier transform.

根据Radon变换的属性，可以从极傅立叶变换推导出一种旋转和平移不变量。

This example involves the coefficient of trigonometric function transform and its polar coordinates drawings, as well as the interface and control color modify.

这个例子涉及三角函数的系数变换及其极坐标系绘图，以及界面和控件的颜色修改。

The method was also applied to the calculation of the coexistence envelope fornon-polar nitrogen and oxygen from the vicinity of the triple point to close to thecritical point.

对真实气体 N2、O2从接近三相点到临界点附近的汽液相平衡模拟得到了与实验数据非常吻合的结果。

These are Tundra Buggies, designed to bring people to polar bears.

这些是苔原车，是研究者用于接近北极熊的交通工具。

Hb Memphis: substitutes one uncharged polar residue for another of similar size on the surface.

表面上的一个不带电的极性基团被另一个相似不带电的极性基团取代。

Amino acids with nonpolar r groups are less soluble in aqueous solvents than amino acids with polar uncharged r groups.

带有极性非荷电的R基团的氨基酸能与水形成氢键，通常能溶于水溶液。

Polar distribution of Con A receptors was observed on the plasma membrane of unfertilized egg cells and central cells.

在蚕豆和莺尾的生殖细胞表面均有这三种凝集素的受体。在朱顶红生殖细胞表面有前两种凝集素的受体，分布比较均一，但是没有大豆凝集素的受体。

However the polar cold water biota can be recognized either by a uniformitarian approach or by a palepbiogeographic approach.

但是极区冷水生物群除了藉助於「均变说」外，亦可利用重建古生物地理之方法来确认。

This was not understood at the time, and therefore went unaddressed, until ascension became so distorted that we chose to stop ascending and wait for a time when all records would be revealed.

这在当时没有被了解，因此进行着无改编，直到提升变得如此扭曲，我们选择去停止提升并等待所有记录能被揭示的那一天。

The attack＇s nuisance value is increased because mobile phone networks also send notifications of new voicemail by sms,so an attacked phone may stop advising of new voice messages too,it warned.

它警告：这种攻击的危害增长是因为移动电话网络也会通过短信发送新语音邮件的通知。所以受到攻击的手机可也以停止新的语音信息的提示。