查询词典 planetary

The radial rectilinear stretching motion is firstly analysed, and its condition is deduced. Then two planetary gear mechanisms are assembled to realize the motion. In addition, the kinematics and dynamics analysis of arm mechanism is done, which provide the theoretic basis for the selection of servomotor and for holding the good dynamics and static performance of the clean robot.

首先对其末端执行器的径向直线伸缩运动展开分析，得出了实现该运动的必要条件，并采用两组行星轮系与连杆机构的组合形式来实现末端执行器的运动，此外还对该机构进行了运动学和动力学分析，为电机的选择以及控制净化机器人的动态性能和静态特性提供理论基础。

"We've already gotten uranium results, which have never been reported before," said Robert Reedy, a senior scientist at the Tucson-based Planetary Science Institute, and a member of the Kaguya science team."We're getting more new elements and refining and confirming results found on the old maps."

来自位于Tucson的行星科学研究所资深科学家，名为"Kaguya"科学小组的一位成员Robert Reedy说："我们已经获得了釉的信息，以前从未有过这一报道，我们获得了更多的新元素，还会对老地图上的结果进行修正和核实"

Newton invented calculus, gave the general formulation of the laws of mechanics that today carry his name, discovered the law of universal gravitation, solved the dynamical problem of planetary motion, invented the reflecting telescope, and made the first systematic investigations in optics and spectroscopy.

牛顿发明微积分；他赋予力学定律普遍公式，至今仍沿用他的名字来称呼；他发现万有引力定律，解答行星运动的动力学问题，发明反射望远镜，并且是首位有系统的探究光学与光谱学的人。

For planetary work I stick my 3-inch refractor out the front window, and at times the images are so steady I can use 200 power.

对于行星观测，我把我的3英寸望远镜探出窗外，大部分时候的星像都很稳定，我即使使用200倍的目镜也没有关系。

Vertical planetary retarder has become the satisfying product which can be designed and produced according to the needs of clients.

其中生产的立式行星减速器可根据客户要求进行设计制造，已成为让客户放心的产品。

Taking the multi-deformable-body dynamics theory as a foundation,the dynamics behaviors of ring gear of the planetary gear set were studied in the process of engagement.

以多柔体动力学理论为基础，研究了行星齿轮内齿圈在啮合过程中的动力学行为。

Explanation: This gorgeous celestial vista is centered on one of the Milky Way's own planetary nebulae, M57, the famous Ring Nebula.

说明：这幅美丽的天文景观，主角是我们银河系的著名行星状星云M57；别名为环状星云。

All of these are a reliable basis for the planetary gear transmission in scraper conveyer in wear-resistance design.

探讨了刮板输送机中行星齿轮传动的弹性流体动力润滑计算，并推导出相应的计算公式；分析了传动润滑状态与磨损的关系，为刮板输送机中行星齿轮传动的耐磨损设计提供了必要的理论依据。

The products combined more than 10 series gearboxes with thousands of specifications, which include R Rigid tooth flank helical gear units, S Helical-worm gear units, K Helical-bevel gear units,F Parallel shaft helical gear units, T Spiral bevel gear units, SWL, JW Worm screw jack H.B Rigid tooth flank gear units, P Planetary gear units, RV Worm reducer. These products are slowdown drive device that is commonly adopted in the field of current international industrial transmission.

公司生产R系列斜齿轮减速电机，S系列斜齿轮－蜗轮减速电机，F系列平行轴斜齿轮减速电机，K系列斜齿轮－锥齿轮减速电机， X 系列摆线针轮减速机， T系列螺旋锥齿轮转向箱，H、B系列标准工业齿轮箱，蜗轮丝杆升降机机，RV系列蜗轮蜗杆减速机等十余个系列，数千种规格的产品，是目前国际上工业动力传输领域最普遍采用的减速驱动装置。

Double star tests, while interesting to mention in reviews, are not quite as useful for judging the contrast and quality of optics, since things like secondary obstruction and residual spherical aberration often don't impact the view of double stars as much as they do high power planetary detail.

但是请记住，训练有素、挑剔的眼睛，通过星点测试，可以发现一些光学上的暇癖，但是这些小问题对最终成像几乎没有影响，因此你大可不必那么挑剔。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。