内行星

In order to exploring the comprehensive methods of plan of transmission of four planetary line gearbox,this paper theoretically integrated the planetary transmission schemes by applying topological diagram s,and studied the comprehensive method of the transmission scheme topological diagram s of four planets.

为了探讨四档位行星变速箱传动方案综合方法，应用图论理论综合行星齿轮变速箱传动方案，研究了4个行星排变速箱传动方案拓扑图综合方法，该方法通过4个行星排拓扑图中基本构件的不同方式的相互结合，能综合出不同的变速箱传动方案；推导了依据给定的变速箱外传动比，计算了每个行星排内传动比的表达式，并编写了计算机辅助综合变速箱传动方案软件。

However most planets of seeming lifelessness do hold life; some upon other dimensions within your creation even hold an etheric humanoid form.

然而，大部分看来无生命的行星实则拥有生命，有些你们造物内其他维度的行星甚至拥有一个以太的类人形体。

As a result,the tooth profile equations, helix angle equations,limit curve equations and induced normal curvature equations for worm and internal gear are obtained.

介绍了一种新型的传动机构超环面行星蜗杆传动，运用啮合理论的包络法建立了这种传动中行星轮与蜗杆、行星轮与内齿轮啮合的基本方程，进而得到了蜗杆和内齿轮的齿面方程、螺旋升角方程、界限曲线方程及诱导法曲率方程等。

To highlight the importance of ring gear flexibility to dynamic performance of the system, a novel elastodynamic model of spur PGT is presented in this thesis.

本文将以NGW型直齿行星传动为例，创建计入内齿圈弹性的直齿行星传动的精细化模型，以揭示内齿圈的弹性变形对系统动力学性能的重要影响。

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。

Firstly, this paper introduced the involute few teeth difference planetary transmission organization and its structural design., analyzed determined parameter, meshed transmission limiting condition and the dislodgement coefficient choice of the few teeth difference planetary transmission organization.

首先，本文介绍了渐开线少齿差行星传动机构及其结构设计，分析少齿差行星传动机构的参数确定、内啮合传动的限制条件和变位系数的选择，为后续的优化设计、CAD/CAE分析奠定理论基础。

VSOP87 Functions used to Compute Planeta - These functions are a VB version of the complete VSOP87 planetary theory designed to be used to in a program to compute the heliocentric ecliptic longitude, latitude and distance of the planets Mercury to Neptune over a period of several thousands of years to about 1 arcsecond of precision.

这些函数是一个VB版本的完整VSOP87行星理论，旨在一个程序中用来计算以太阳为中心的黄道的经度，纬度，以及Mercury到Neptune行星的距离（从数千年到大约1arc秒精度的周期内）。

In view of a new-type three-shaft gear transmission with inner planet gear ,the formulas for meshing-force and meshingefficiency have been set up.

针对新型的三轴式内齿行星传动，分析了内齿平动的轮齿的啮合力和啮合效率，并以某种型号的三轴式内齿行星减速器为例进行了效率计算。

This research applies the micro forming process with other mass production techniques to construct the key components of the micro/meso gear transmission. The final prototype is the planetary gear transmission with outer diameter 6mm and gear module less than 0.15mm developing in 3 years. The purposes and developing technologies of this project are as follows: 1. setting up the design and analysis of parts and system; 2. the mold design of gear and planet plate; 3. assembly modules of planetary gear train; 4. inspection of gear profile and gear train; and 5. heat treatment of micro parts.

本研究将以精微成形技术搭配其他量产制程，逐步开发微型减速机内的所有关键零件，预计在3年内最终完成外径≦ψ6mm、齿轮模数m≦0.12mm之的行星式齿轮减速机的开发，研发目标包含有微型传动系统结构/机构与零组件设计分析技术，试量产型精微行星/太阳齿轮、传动盘、环齿轮等原型件模具设计与开发，行星臂、太阳齿轮、行星齿轮与环齿轮等组装模组技术，微型齿轮齿形及相关微型齿轮箱检测技术，以及精微元件热处理技术等关键技术。

Mercury is called an "inferior planet" because its orbit is nearer to the Sun than the Earth's.

水星由于绕太阳的轨道比地球的要近所以被称之为&内行星&。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷