单词:water coulometer
单词:water coulometer 相关文章
It's a sunny day. Oxygen in the water increases and the fish crowd together. 今天阳光明媚。冰下的含氧量提高,鱼群的密度会很大。 A 2,000-meter fish net quickly sinks to the bottom. 长达两千米的渔网很快沉入水底。
EXPLORATIONS -January 16, 2002: Mars By Paul Thompson VOICE ONE: This is Doug Johnson. VOICE TWO: And this is Sarah Long with the VOA Special English program EXPLORATIONS. Today, we report about the p
EXPLORATIONS -January 30, 2002: Population and the Environment By Cynthia Kirk VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Tod
Floods Challenge Midwest Farmers On his land outside Peoria, Darrel Kammeyer is keeping one eye on the rising Illinois River and another on the only thing standing between it and his farmland, a seven-meter-tall levee. It was constructed to hold back
How terrible the flood was! Around the corner seeped lots of water. I was so scared when I saw the water level goes up higher and higher. No sooner did I see my house flood with rainwater, then I became completely shocked.
Andrew got down on his hands and knees. He put a dry sponge into the bucket. The bucket was full of soapy water. He squeezed the sponge. He scrubbed the kitchen floor. There were marks on the floor. There were spots on the floor. There was old food o
Eddie made a sandwich. He made a sandwich for lunch. He made a turkey sandwich for lunch. He put two slices of bread in the toaster. He pushed down the toaster handle. He took some turkey out of the refrigerator. He sliced the turkey. He put it into
THIS IS AMERICA - November 4, 2002: Florida Keys By Paul Thompson VOICE ONE: In the northern part of the world, the autumn season is turning the leaves brown, red and gold. Winter’s cold will arrive
swimming pool 游泳池 changing room 更衣室 shower 淋浴 diving platform 跳台 ten-meter platform 10米跳台 five-meter platform 5米跳台 three-meter springboard 3米跳板 one-meter springboa
Swimming 游泳 swimming pool 游泳池 changing room 更衣室 shower 淋浴 diving platform 跳台 ten-meter platform 10米跳台 five-meter platform 5米跳台 three-meter springboard 3米跳板 on
American swimming great Michael Phelps remains on track to win an unprecedented eight gold medals at a single Olympics. VOA's Jim Stevenson was at China's National Aquatic Center as Phelps relied on three other teammates Monday to win a thrilling re
Using Ingenuity to Combat Global Water Crisis Much of the work goes on in Well Dones headquarters building south of San Francisco. Designers work to create compelling logos and user-friendly web layouts to spread the word on global water shortages. T
Global Warming Might Threaten Water Supply Stanford University climate expert Noah Diffenbaugh led the study, which compares snowpack conditions across the northern hemisphere in the late 20th century with climate model projections for the next one h
EXPLORATIONS -June 12, 2002: The Hudson River By Oliver Chanler VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special English program, EXPLORATIONS. Today we tel
Todd: Christine you're from Papua New Guinea? Christine: Yes, we're a small island in the South Pacific. Todd: And that is near Australia? Christine: Just above Australia. Todd: Like how far is it from Australia? Christine: To Brisbane it's 3 hours b
By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica
Reading water meters in an unfamiliar part of town, I came upon a house with no number. Then I noticed an elderly man gardening at the first house on that block. Excuse me, I said to him. Are you Number One?He smiled and replied, My wife thinks so!No
The South Korean Coast Guard is in the final stage of preparing for the salvage efforts. Four crane barges that can lift a thousand tons each, have arrived at the incident area. The 145-meter-long, 22-meter-wide passenger ferry is the biggest ferry a