un. 动量积分方程
[网络] 动量积分方程式

EXPLORATIONS - Mars Exploration, Part 2

EXPLORATIONS - Mars Exploration, Part 2 By Paul Thompson Broadcast: Wednesday, February 04, 2004 (THEME) VOICE ONE: This is Shirley Griffith. VOICE TWO: An artists picture of a Mars Rover vehicle. And

发表于:2018-12-01 / 阅读(89) / 评论(0)

Explorations

60秒科学:Water on the Moon

Water on the Moon Studies in the journal Science report that instruments on three different spacecraft have found evidence for widespread trace amounts of water on the moon. Karen Hopkin reports For all you space buffs who like to keep track of wher

发表于:2018-12-07 / 阅读(68) / 评论(0)

60秒科学

SSS 2009-09-24

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(45) / 评论(0)

Scientific American(九)月

Mars Rover to Begin Taking Soil Samples This Week

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(68) / 评论(0)

VOA2004（上）--各类新闻

VOA慢速英语20060515a

DEVELOPMENT REPORT - Need to Dig a Well? Start HereBy Gary Garriott Broadcast: Monday, May 15, 2006 This is Shep O'Neal with the VOA Special English Development Report. There are several low-cost ways

发表于:2019-01-30 / 阅读(63) / 评论(0)

2006年慢速英语（五）月

Spacecraft see 'damp' Moon soils

We are rediscovering the enigmas(谜团) of the Moon and they're really in our own backyard Dr Jim Garvin, Nasa Goddard Space Flight Center Moon water has world in a twitter A surprising amount of water has been found to exist in the Moon's soil. Data

发表于:2019-02-18 / 阅读(47) / 评论(0)

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学英语单词

above-tree-line

active force

anisotropic formation

Aniwa

anti-slack device (asd)

band roughing mill

bang in the middle (of)