单词:electromagnetic (em) waves
单词:electromagnetic (em) waves 相关文章
(THEME) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Faith Lapidus with the VOA Special English program EXPLORATIONS. You are listening to our program today on a radio. Almost no communication would exist in the world without the electromag
Earth Station - The term used to describe the combination of antenna, low-noise amplifier (LNA), down-converter, and receiver electronics that are used to receive a signal transmitted by a satellite.
AS IT IS 2014-08-26 Is North Korea Preparing to Strike US Electric Grid? 朝鲜准备打击美国电网吗? A longtime national security advisor to the United States Congress has said the countrys electric system -- called a grid -- is mostly unprote
EXPLORATIONS - South Asia Continues to Recover After December Tsunami By Jill Moss Broadcast: Wednesday, July 20, 2005 (MUSIC) VOICE ONE: I'm Steve Ember. VOICE TWO: Indonesian Navy sailors load aid f
What's that?Sort of a shove.Shot passed my legs there. 那是什么 铲子似的东西 从我的腿边游了过去 We need to speed up. Get moving. 得加速了 动起来 Sharks lock on to the electromagnetic fields that all living creatures produce.