单词:electric current impulse
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Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod
Pursue, attempt 追求,尝试 This week we follow the training of the British triathlete team, including Alistair Brownlee. Alistair is the current World Triathlon Champion. The 24-year-old also won the title in 2009 and is one of Britain's best ho
Weakness, obstacle 弱点,障碍 This week we meet Russian athlete, Ivan Ukhov. Ivan is a high jumper and is hoping to compete at this year's Olympic Games. He is the current European Indoor champion and also won the world indoor championship title
After successfully flying their solar-powered plane from Spain to Morocco in 2012, and across the U.S. in 2013, Swiss aeronautical enthusiasts are now getting ready to attempt a flight around the world next year. The new, improved version of the plan
[00:04.99]1.How's it going? [00:11.23]The day that changed my life [00:15.39]When I saw Jim on the news,I didn't recognise him to begin with. [00:22.54]He looked really thin and his hair was falling out. [00:28.19]When I heard the reporter say his na
Solar-Powered Plane Completes Trip Around the World 最大太阳能飞机完成环球之旅 For the first time, a solar-powered airplane has completed a trip around the world. The Solar Impulse 2 landed in Abu Dhabi before sunrise on Tuesday, after a
很多人担心自己的英语说的生硬、没有生气,其实英语中有许多雷人的冷笑话,只要多多积累一些雷人英语,还怕你的英语无趣吗?掌握下面这十大搞笑英语句子,你就可以瞬间变为身幽默达人
171. I shouldn't have said that W: Miss Li must have been angry when having dinner last night. M: I shouldn't have said that. W: It's not all your fault. M: How did you make Mr. Zhang so angry? W: I shouldn't have said that. M: I suggest you appologi
200. Let me think for a moment before making that decision W: Will you buy me a computer? M: Let me think for a moment before making that decision. W: All of my classmates have one. M: Shall we buy a bigger apartment? W: Let me think for a moment bef
Lesson Fourteen Short Conversations Read aloud the concersation two times, and then listen to the tape without looking at the text. The Pursuit for Punchy Flyers Lucy: Come on, come all to the grand opening of The Electric Palace. You'll find high vo
1387 、 电木 Bakelite 1388 、 电玉;醛树脂 ureaformaldehyde(UF) 1389 、 电池 cell 1390 、 电池组 battery 1391 、 电位;电势 electricpotential 1392 、 电位计 potentiometer 13
Do You Think You Can? 你认为你可以吗? From VOA Learning English, this is the Health Lifestyle report. Willpower is a mysterious force that helps us to control our actions and achieve our goals. We also call willpower determination, drive and
A: Does this hotel have a pool? B: I'm sorry, sir, we don't have one. However, in our gym, we do have swim stations. A: I'm not sure I understand. B: Think of a deep bathtub that you can swim in, but against a current. A: Cool. What will they think o
A: I was wondering if the buyers have accepted my counteroffer. B: Yes, I just faxed you the information an hour ago. The buyers have a counteroffer for you. A: How much did they counteroffer? B: They now are offering to pay ten thousand less than yo
物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声,洪
LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin