cometary proplyd

Effects of Magnetic Fields, Viscosity, and Nonaxisymmetry on Gravitational Instability in Protoplanetary Disks

磁场、粘性和非轴对称性对原行星盘引力不稳定性的影响

The operation principle of the planet type ball mill is: Rotate circumference of record have, equip with 4 is it make with rotary table high-speed ball of rotation rub the pot to revolve round the sun promptly.

行星式球磨机的工作原理是：在旋转盘的圆周上，装有4个即随转盘公转又做高速自转的球磨罐。

The grocery store took stock every week on Monday mornings.

那家杂货店每星期一上午进行盘点。

A retrograde Venus is not advised for any marriage chart. Since Venus only retrogrades for about40 days every two years, it is fairly easy to avoid.

任何婚盘都不喜金星逆行,因每两年金星逆行约四十天,避开很容易.

An MRI exam on Thursday showed the herniated disc.

在星期四进行MRI核磁共振检查出来骨盘间突出。

Numerical Calculation for the Sliding Rate of the Planetary Bevel-type CVT

行星锥盘无级变速器滑动率的数值计算

Determination of parameters Belleville Springs for Tsubaki Disco

行星锥盘无级变速机中碟簧参数的确定

The protoplanets were huge affairs.

原行星是一个巨大的天体。

In the meantime the protoplanet cores were proceeding to consolidate.

在此期间，原行星的核开始凝成。

"Just as the planets revolve about the sun, planetary electrons are thought of as revolving about the nucleus."

正像行星围绕太阳转一样，行星般的电子被认为是围着原子核转的。

These were the protoplanets from which the planets of the present developed.

这些就是原行星，现在的行星正是从它们演化而来的。

At the heart of BMW′s Active Steering system is the planetary gear set incorporated into the steering column.

BMW主动转向系统的核心是内置在方向盘传动轴上的一个行星装置。

It is common practice to take the physical inventory after regular business hours or on Sunday.

对存货盘点通常是在正常的营业时间之后或在星期天进行。

Design and Test Research of the Planetary Bevel-Type CVT Based on Constant Power

新型行星锥盘式机械无级变速器传动特性的实验研究

Finally, the prototype of the new-type DISCO CVT based on low sliding rate and constant power is trial-manufactured.

最后试制出新型低滑动率恒功率行星锥盘无级变速器的样机。

Research on a New-type DISCO CVT Based on Low Sliding Rate and Constant Power

新型低滑动率恒功率行星锥盘无级变速器的研究

Design Conception of Planetary Bevel-type CVT Based on Constant Power and Constant Sliding Rate

恒功率恒滑动率行星锥盘无级变速器的设计构想

The Development of Parametric Design System of the Planetary Bevel-Type CVT and Thermal Field Analysis;

行星锥盘无级变速器参数化设计系统的开发和热场分析