自转

To avoid the new thinking of Copernicus that the sun is the center and the earth moves around it once a year and turns on itself once a day, to keep the old thinking of Ptolemy, earth at the center, you need this complicated system of interlocking spheres and gears.

为了排除哥白尼的新理论，也就是：太阳的宇宙中心，地球每年绕日公转一周每天自转一周，并维护托勒密旧学说也就是：以地球为中心，你需要这套球体与齿轮纠缠的复杂系统。

A person who lives at the Equator is in accelerated motion due to the earth's rotation.

住在赤道的人由于地球自转的缘故做加速运动。

Is in accelerated motion due to the earth's rotation.

由于地球自转的缘故做加速运动。

JT91-200 artillety gyro altazimuth is a fix instument which can research the grid north automatically and determine grid north azimuth at any direction.It works by making use of the physical features of gyro and influences of earth rotation.

JT91-200型炮兵陀螺经纬仪是利用陀螺本身的物理特性和地球自转的影响，实现自动寻找其北方向和测定任一方向线的真北方位角的定向仪器。

My mean is: In usual alternator work by rotate function.

我的意思是：通常来说，发电机的工作原理是自转功能

When the earth self-rotation parameter fis not equal to zero, the surface wind stress forcing with anticyclonic or cyclonic vorticity may form a corresponding warm or cold gyre in the South China Sea through the Ekman pumping.

当地球自转参数f≠0时，通过埃克曼抽吸作用可在南海分别产生与反气旋性和气旋性海面风应力强迫相对应的暖涡和冷涡。

Aristachus of Samos explained the apparent motion of the stars and planets by proposing that the earth turns on its own axis and also travels around the sun.

而萨摩斯岛的阿里斯塔克是这样解释恒星和行星的视运动的："地球在自转，同时绕着太阳转"。

We analyze the effect of approximate velocity in the formula of the rotation of the gravity potential, which is caused by the Earth rotation.

分析了地球自转引起的位旋转效应公式中采用近似速度的影响。

Based on the research on the main rotor aerodynamics of gyroplanes, the author found that the autorotating rotor has better aerodynamic condition and higher efficiency comparing with the powered rotor of helicopters.

旋翼机在正常飞行中和直升机在自转下滑时，其旋翼都处在自转状态。

On the base of the corporate formation hypothesis of the planets,this paper premises that all the planets begin with the prograde rotation in the early stage of the solar system.

金星和水星有着与众不同的长周期自转，金星的缓慢逆向自转尤其引人注目，曾有多种假说试图解释其起源。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。