查询词典 planetary

A mathematical model for optimal design of planetary gear speed reducer is introduced in this paper.

介绍了行星齿轮减速器单目标优化问题数学模型的建立。

This is the website of Arkansas-Oklahoma Center for Space and Planetary Sciences.

这是阿肯色州-俄克拉荷马州空间和行星科学中心的网站。

This is a very interesting planetary system, discovered only last year.

这个很有趣的行星系是去年被观测到的。

We now have a culture of distraction. But we have a planetary emergency.

我们有困扰的文化，但是我们面临星球危机。

Hence, the study on planetary volcanism is a key part of comparative planetology. Study the volcanism of celestial bodies of Solar system could provide significant knowledge for the understanding of the formation and evolution of the planets, deep and surface processes, metallogenesis, and initiation of life.

对太阳系天体火山作用的对比研究能够提供认识太阳系和行星演化、天体深部和浅部地质作用过程、矿产资源形成以及生命的起源和演化等重要信息，是比较行星学的重要组成部分。

Pollard is a member of a world wide collaboration called Planet, which is searching the skies for evidence of stars with planetary systems similar to our own.

波拉德是一个叫做"行星"的全球协作机构的成员，该机构的任务是搜索天空，寻找具有类似我们这个行星系统的其他恒星的证据。

The rotating chute planetary gearing of eoordination type double pot bell less furnace top of 750m 3 blast furnace in Laiwu Iron and Steel General Works can make chute to do circular motion around contral line or blast furnace of to do inclined motion, and it can achieve ideal charging of throat.

莱芜钢铁总厂750m3高炉双罐并列式无料钟炉顶旋转溜槽行星传动系统使溜槽既可绕高炉中心线会圆周运动，又能倾动，实现了炉喉的理想布料。

Stevenson will present the findings at the European Planetary Science Congress in Potsdam, Germany on Wednesday.

在9月16日于德国波茨坦举行的欧洲行星科学大会上，克蒂文森将公布他们的研究发现。孝文

Firstly, the mechanism of the preparation of superfine quartz powder with ball mill is studied in this article, based on nature of quartz material, Griffiths strength theory and the crush theory of planetary ball mill. The problem of granulation during the process of the preparation of superfine quartz powder is studied minutely. And proposed increasing dispersant and disperser medium to restrain granulation, and dispersing use ultrasonic after milled.

首先，本文结合石英材料的基本物性，以格里菲斯强度理论和行星式球磨机的粉碎原理为基础，研究了球磨法制备超细石英粉体的机理，同时对粉石英制备过程中的团聚问题及其控制作了细致的研究，提出粉磨过程中增加分散剂和分散介质来抑制团聚，粉磨后采用超声法进行分散，并确定了最佳分散剂、分散介质的用量和最佳超声分散时间。

You are the father, the object of worship, the preceptor and even more venerable; certainly there is nothing equal to you in the three planetary hierarchies so how can there be anything superior.

在三界中，当然就没人能和您相比，怎么会有人高于您呢？

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。