单词:visual contact
单词:visual contact 相关文章
Our car is equipped with the GPS so we won't get lost. 我们的车装上了卫星定位系统,所以就不会迷路了。 GPS =Global Positioning System 全球位置测定系统.
(WA-MM) Not long ago, some of you may have read about a team of mountain-climbing scientists who helped to recalculate the elevation of the highest mountain in the world: Mt. Everest. Of course, the elevation of Mt. Everest was determined many years
EXPLORATIONS - Global Positioning System By Paul Thompson Broadcast: Wednesday, May 05, 2004 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Phoebe Zimmermann with the VOA Special Engli
DAVID GREENE, HOST: We now know that the man who killed 26 people in a tiny Texas church on Sunday had been court-martialed and discharged from the Air Force for assaulting his wife and child. And authorities say that Devin Patrick Kelley sent threat
62 利用现代科技手段控制蝗虫 DATE=6-26-01 TITLE=AGRICULTURE REPORT - Controlling Locusts with Technology BYLINE=George Grow (Start at 59