单词：planetary ball mill
单词：planetary ball mill 相关文章
SCIENCE IN THE NEWS - Gore's Movie Heats Up Discussion of Global Warming (and Has His Critics Steaming)By Caty Weaver and George Grow Broadcast: Mon, 3 Jul 2006 16:00:00 UTC (MUSIC) VOICE ONE: This is
2006年慢速英语（七）月
This is Scientific Americans 60-Second Science. Im Christopher Intagliata. Got a minute? Astronomers have already discovered hundreds of exoplanets. But make way for the new kid, which is orbiting a kind of star that models say it shouldnt. Researche
Scientific American(十一)月
Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy wit
国家地理2008年
This is Whats Trending Today. Last week, the American space agency NASA announced it was looking for a Planetary Protection Officer. Many people discussed the job on social media. The Washington Post called the jobs title one of the greatest ever con
2017年VOA慢速英语(八)月
By David McAlary U.S. astronomers have made a finding they say increases the chance that distant stars may harbor planetary systems like our own. They have discovered two planets the size of Neptune e
VOA2004（下）--健康科技
PISCES February I9 to March 20 The Piscean is the ideal silent partner. When actively engaged in a partnership, he is apt to be too indecisive, and either too suspicious or too trusting. His emotions invade everything and they are not clear-sighted.
趣味英语
to keep one's eye on the ball eye-opener 我们再给大家介绍一个又eye组成的俗语：To keep one's eye on the ball。To keep one's eye on the ball这个常用语原先是来自球类运动,如
美国习惯用语
to play ball on the ball 我们知道，美国人非常喜欢体育，特别是球类运动。他们热衷于橄榄球，垒球，篮球，网球和高尔夫球，等等。每当电视转播精彩球赛
美国习惯用语
now the ball is in your court to start the ball rolling 美国人非常喜欢运动。凡是在各种运动中出类拔萃的人都成了人们心目中的大明星。这些明星的收入每年可以高
美国习惯用语
By Mike O'Sullivan Los Angeles 20 December 2006 The Planetary Society, an organization that promotes space exploration, has teamed up with NASA to send a digital greeting card to Mars aboard the Phoenix lander, an unmanned space probe, on a mission
2006年VOA标准英语（十二月）
Juno Spacecraft Launches Toward Jupiter The U.S. space agency launched the Juno spacecraft from the Kennedy Space Center in Florida Friday, beginning a five-year journey to Jupiter. 3,2,1. Ignition and liftoff of the Atlas 5 [rocket] with Juno on a t
VOA标准英语2011年(八月)
Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy with
自然百科2008年
The Prime Meridian(本初子午线) here is the longitude, the mark on the ground, from which all great voyages are measured. This is the view back to our remarkable home planet/ that the first human out here can look forward to, a distant blue dot l
自然百科2012年
Still, statistically the probability that there are other thinking beings out there is good. Nobody knows how many stars there are in the Milky Wayestimates range from 100 billion or so to perhaps 400 billionand the Milky Way is just one of 140 billi
万物简史
First Solar Sail to be Launched into Orbit from Russian Submarine 俄潜艇首发太阳反射器进入轨道 A solar sail might do for space missions what fabric sails once did for sea travel.It would
VOA2005（下）--环境科学探索
今天又要学两个在总统大选年里新闻界时常会用到的习惯用语，而且这两个习惯用语还是从美国人最心爱的消遣活动: 棒球赛中借用来的。 这两个习惯用语都和用牛皮制成的结结实实的棒球有
美国习惯用语
我们上次讲了几个和棒球赛有关的习惯用语。美国人喜欢棒球，同时也喜爱其它球类运动，所以不仅围绕棒球产生了不少习惯用语，还有更多的习惯用语是以ball - 球，这个词为中心的。这就是
美国习惯用语
Many songs have been written about America's baseball teams. These include the Brooklyn Dodgers, the Philadelphia Phillies, and the Chicago Cubs. Other songs have been written about famous baseball players: Babe Ruth, Jackie Robinson and Joe DiMaggio
英语杂谈
一提到合作，互相帮助，大家肯定都会想到cooperate，help each other什么的，今天我们要来学一个新用法 play ball。 我们知道，美国人非常喜欢体育，特别是球类运动。他们热衷于橄榄球，垒球，篮
实用英语
Scientists Say New Diet May Save Planet From VOA Learning English, this is the Health and Lifestyle report. 欢迎收听美国之音学习英语栏目，这里是健康与生活频道。 Scientists in London say they have found the best diet for both
2019年VOA慢速英语(二)月