单词：signal timing dial
单词：signal timing dial 相关文章
Is anyone out there? For over 40 years scientists have been searching for extraterrestrial intelligence, but theyve found nothing. Now the new Allen Telescope Array, a string of 350 radio telescopes, is being built 300 miles north of San Francisco a
国家地理2008年
Delay - This is the wait time between to specific events, and regarding satellite communications, it is the time it takes for a signal to go from the transmission station up to orbit and through the s
电信英语
And clearly, we are trying to find evidence of ET, and we are trying to do that by looking for a signal, in whats called the electromagnetic spectrum, which is a fancy way of saying the radio dial, at least for us. Let me turn on my radio here, okay,
自然百科2008年
BEIJING, March 13 (Xinhua) -- Both China and U.S. signaled that the world's two biggest economies should explore a road of new-type relations. The new type of relations between major powers should be based on mutual respect, cooperation and seeking w
英语新闻
unit 414 了解公用电话（1） dialogue 英语情景对话 A:Excuse me. I get confused that the two phones on the booth are different you tell me how to use them? A:打扰了。我弄不明白这个电话亭里怎么会有两种不同的电话。你
高频英语口语对话