查询词典 planetary electron

MIT planetary scientist Sara Seager, at the NASA press conference, said earlier planetary claims "are in a gray area."

麻省理工学院的行星理论专家萨拉·西格尔在NASA举办的新闻发布会上称，早先有关行星的断言"处于一个灰色的区域。"

In cases where a third planet lies at the midpoint of the first two we just considered, a "planetary picture" is formed. On page 54 of the German anthology "Man: A Receiving Station of Cosmic Influences", Alfred Witte wrote: A planetary picture is formed by three planets when one of them is located at the midpoint of the other two.

在一些例子里面，当第三颗行星正好落在两颗行星的中点上时，我们认为行星的图像已经形成了，在德国人的占星学书籍里面写到"人：宇宙影响力的接收站"怀特写到当一颗行星落在另外两颗行星的中点上时，三颗行星形成了一个行星图像。

The obstacle (the altitude of 900 mm) process for both sides of a planetary gear train was analyzed in ADAMAS. It is proved that the physical dimension of the planetary gear train, bodywork center position and attachment coefficient are the key effect factors. The driven moment, velocity and normal pressure sharply increased as each wheel surmounting obstacles, but they were moderate after the front wheel came over the obstacles. Another weaker pulse occurred when the rear wheel began climbing, and then the parameters reached a plateau.

行星轮系的结构尺寸、车体质心位置及附着系数对越障高度影响较大；各轮系越障时出现驱动力矩、速度和正压力急增的现象，前轮系的前轮越上障碍后，各参数值趋于平稳，后轮越障时又出现瞬时脉动，但脉动较小，后轮系也有相同的变化趋势，各轮的阻力矩和输出功率与正压力变化趋势相同。

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。

Planetary Hoppers - Planetary Hoppers is a Java based space strategy game.

Planetary Hoppers是一个基于Java的空间策略游戏。

The isotopic abundances of rare gases and cosmic-ray exposure ages of asteroid meteorites, planetary meteorites and the Apollo lunar samples applied to clue up and understanding cosmic-ray exposure history of parent bodies of different meteorite types, collision events, the relationship between cosmic-ray exposure ages and heliocentric distance of the parent bodies, irradiation history of precompaction exposure of chondrules, pairing meteorites for the Antarctic meteorites and desert meteorites, the ejection history of planetary meteorites, and relative ages of lunar craters and so on.

小行星陨石、行星陨石及阿波罗月球样品的稀有气体同位素丰度和宇宙射线暴露年龄，已广泛应用于探索和了解不同类型陨石母体的宇宙射线暴露历史、冲击碰撞事件、暴露年龄与日心距离的关系、吸积形成母体前硅酸盐球粒的辐照历史、南极和沙漠陨石中成对陨石的判别、行星陨石的溅射历史及月坑的相对年龄等关键词：宇宙射线暴露年龄；陨石；球粒陨石；无球粒陨石；火星陨石；中铁陨石

If we now go back to the concept of the planetary picture, incorporating the factor in the middle, we note that AR=CU/VU=MC/AP, and we thus have 2 single planetary pictures. In order to find further pictures, we could also quickly glance at a printout listing the midpoints.

如果现在回到行星图像这个概念上，我们可以把这种关系记为 AR=CU/VU=MC/AP 由中点引发的关系让我们有了两个行星图像，我们可以快速的浏览中点清单来找到更多的行星图像。

A: I am Ra. There dwell within the Confederation planetary entities who from their planetary spheres do nothing but send love and light as pure streamings to those who call.

A ：我是拉。星际联邦的实体只是从自己的星球送出爱与光如同纯粹的串流传递给那些呼求的实体，此外没有做什么。

Double crank four- ring- plate- type pin- cycloidal planetary reducer is a new type of cycloid - pin gear planetary reducer, and it has many metirs. This article is about the study of parameterization design of this type of reducer, the purpose is to improve the efficiency of its serialization design.

双曲柄四环板针摆行星减速器是具有多种传动优点的新型针摆行星传动，文章从提高其系列化设计效率的角度出发，研究该种减速器的参数化设计方法。

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。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。