These monumental blows can literally set moons rocking, said researcher Francis Nimmo, a planetary scientist at the University of California at Santa Cruz.
桑塔·克鲁兹加州大学的行星科学家，佛朗西斯•尼姆说，最不朽的碰撞使得月球完全摇摆不定。
The hot core collapses and begins to pulsate, eventually shedding its outer layers of gas to set the stage for the birth of a planetary nebula.
恒星高温的核心坍缩，并开始有规律的振动，最终气体外层迸散，为行星星云的形成提供了有利条件。
IT LOOKS like a planetary tattoo designed to be seen from space, a vast set of concentric circles inscribed in the skin of southern California's desert.
从太空遥看加州南部的沙漠，你可以观测到一个由许多同心圆组成的图案，犹如印在皮肤上的纹身一般。
Gestation upon this planet has but set the stage for the emergence of the Planetary Being now taking definite form.
地球上的孕育期已经为现在成形的“行星存有”的出现创设条件。
This paper analyzes the feasibility of planetary gear set as clutch from the perspective of design.
本文从设计角度分析采用行星齿轮组作为离合器机构的可行性。
Under the condition of rated load and rated speed operation of a generator set, over-vibration phenomena appeared in the planetary gearbox's bearing and the rear bearing of the generator.
某带行星齿轮减速器的发电机组在满负荷额定转速工况下，出现减速器轴承及发电机后轴承处横向振动偏大的故障现象。
Aiming at 2k-h planetary gear set, the physical model of sun gear scuffing damage is developed, and then the simulation signals of scuffing with different level severity are obtained.
针对2K - H行星轮系，建立太阳轮胶合损伤的物理模型，通过仿真获得不同严重度的行星轮系损伤振动信号。
In order to set up the dynamics model of the transplanting mechanism with planetary elliptic gears of high-speed rice transplanter, the effect of seedling-pushing device on it must be analyzed.
为了建立高速水稻插秧机椭圆齿轮行星系分插机构的动力学模型，必须分析推秧装置对该机构的作用。
The paper analyzed the deflection of a compound planetary gear set and calculated the damage percentage of its roller bearing.
针对某行星变速机构复合排行星齿轮和滚针轴承进行了受力变形分析和损伤率计算。
A new type of planetary gear system for vehicle auto transmission is studied and set forth.
研究和阐述一种适用于汽车自动变速器的行星齿轮新轮系。
To change the gear ratio, most automatic transmissions use planetary gear set.
为了能够改变变速器的传动比，大多数自动变速器使用了行星齿轮机构。
The kinematic analysis model has set up for planetary gear-ring inverse mechanism.
建立了详细的行星齿环换向机构运动学分析模型；
The kinematic analysis model has set up for planetary gear-ring inverse mechanism.
建立了详细的行星齿环换向机构运动学分析模型；
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