顶圆

The basic principle is based on spherical astronomy and elementary geometry of the trajectory mapping method based on the observation of a celestial body zenith distance, then the ship is located in order to sing the next point as the center of this satellite zenith distance of the ship's position as the radius of the circle, observing the same two objects, or objects at different times of the two observations, we can get two ship's position round, then the ship must have been a point of intersection of two ship's position on the circle.

其基本原理是建立在球面天文学和初等几何中的轨迹作图法基础上的，观测一个天体的天顶距，则航船就位于以星下点为圆心，此星天顶距为半径的船位圆上，观测两个天体或者不同时间同一天体的两个观测值，就可以得到两个船位圆，则航船一定在两个船位圆的一个交点上。

One had a round-jacket, a cavalry sabre, and two holster-pistols, another was in his shirt-sleeves, with a round hat, and a powder-horn slung at his side, a third wore a plastron of nine sheets of gray paper and was armed with a saddler's awl.

有一个穿件齐膝的短外衣，带一把马刀和两支长手枪，另一个穿件衬衫，戴一顶圆边帽，身旁挂个盛火药的葫芦形皮盒，第三个穿一件用九层牛皮纸做的护胸甲，带的武器是一把马具制造工人用的那种引绳锥。

Circle with a vernier caliper, and then calculate the number of teeth

测量齿轮先用游标卡尺测量齿轮的齿顶圆直径，再数齿数，然后计算齿轮模数。

The representation of both the addendum and dedendum circles on meshing points is as follows: Driving wheel teeth are visible, drawn in thick lines.

啮合区齿顶圆的画法是：将主动轮的轮齿作为可见，画成粗实线，从动轮的轮

With his bland face and steady ways, he might have tried to sell you insurance. Out of his apron he wore a suit and a flat cap, always neat. He could slice a lemon sole to perfection.

脱下围裙，他会换上西装，带上低顶圆帽，总是很整洁的样子，再加上一幅温和的面庞和举手投足间透露出的沉稳，别人会认为眼前是一个保险推销员。

The wall decor with a round straw hat, a large picture frame , and a few small bamboos made colanders and ladles.

墙壁装饰一顶圆草帽、一个大画框，和几个小的竹制漏杓和杓子。

But their internodes of fruiting branches were short, and having double flower buds mainly born on middle and long fruiting branches, just like Southern melting peach cultivars.

果实卵圆形、果顶圆凸、单果质量较小、果肉离核、果面有较多茸毛，具有地方品种的一些典型原始性状，同时又具有红肉、离核、耐贮运等优良性状。

The result indicates that the diameter of escape wheel addendum, center distance of escape wheel and pendulum have their significant influence on the timing of clock mechanism.

结果表明，擒纵轮齿顶圆直径与擒纵轮轴与摆轴中心距对钟表机构计时的散布影响较大。

The paper introduces the basic principle about the new designing method of the external gear shaper cutter ,limited condition of the transformed cutter displacement factor,the formation of the limited ared and its relationship with the calculation curve of the cutter tip-circle's radius.

叙述了外插齿刀设计新方法的基本原理、转换后插齿刀变位系数选择的各限制条件、限制区域的形成及其与插齿刀齿顶圆半径计算曲线之间的关系，并通过实例介绍了其设计步骤。

The bowler let go a couple of scorchers .

我想买一顶圆礼帽。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了