单词：luminaire for explosive gas atmospheres
单词：luminaire for explosive gas atmospheres 相关文章
One day these manned space missions may reach out even further to distant planets with alien atmospheres, atmospheres that may support their own life forms. Else where in our universe on distant planets, alien air may support extraterrestrial life. J
探索与发现2014年
Broadcast: Feb 13, 2003 Demand for electricity is growing in Mexico, but the state-owned oil company, known as Pemex, is reducing the amount of natural gas it can provide for electrical generation. Th
VOA2003（上）-国际时讯
RANDI KAYE, CNN CORRESPONDENT: We take our shoes off, remove our laptops, and toss our bottled water all in the name of safety. But are we any safer today than we were before 9/11? Not exactly, says Bruce Schneier, author and security technologist. B
CNN2010年(一)月
Energy isn't created or destroyed,it's transferred, so it's transferred from the center of the Sun through the atmospheres to us in many forms, warmth and light via the plants and via the food that we eat. I can really understand why ancient civiliza
探索与发现2015年
But that damned animal also did a speed of 18.5. 在整个一小时内，战舰只能保持着这样的速度， For the next hour our frigate kept up this pace without gaining a fathom! 多进二米也办不到！ This was humiliating for one of the
《海底两万里》中英双语有声读物
Well then, when you dive under the waves, Ned, for every thirty-two feet of water above you, your body is tolerating the pressure of one more atmosphere, in other words, one more kilogram per each square centimeter on your body's surface. 尼德兰，好
《海底两万里》中英双语有声读物