单词:fuel assembly heat release
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By Gary Garriott Broadcast: August 11, 2003 This is Bill White with the VOA Special English Development Report. 1)Sawdust is what remains after trees and logs are cut up into boards for building house
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Nowadays, most of the food we eat is cooked in ovens or on stoves. The heat which is needed to cook this food comes from burning wood, gas, or other fuels1. However, natural resources2 are decreasing. When fuel becomes less available, people have to
Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa
Release Me Please release me, let me go, for I don*t love you anymore. To waste our lives would be a sin. Release me and let me love again. I have found a new love, dear, and I will always want her ne
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
Why refrigerators hum? Why refrigerators hum,on toay's moment of science.On the recent program we have discussed how fluorocarboncoolant cools your food by coming to a boil in coils hidden in your fridge. How is this possible? When you boil water o
ENVIRONMENT REPORT - October 4, 2002: Sport Utility Vehicles By Mario Ritter This is the VOA Special English ENVIRONMENT REPORT. One of the most popular kinds of car in the United States is not really
DEVELOPMENT REPORT - Double-Drum Sawdust Stove By Gary Garriott Broadcast: Monday, September 27, 2004 This is Steve Ember with the VOA Special English Development Report. Sawdust is what remains after
SCIENCE REPORT – January 17, 2002: Lying Eyes By George Grow Lying eyes (bottom) give off increased heat (Photo -Dr. James Levine) This is the VOA Special English SCIENCE REPORT. Scientists say they
The U.N. Secretary-General says between $25 billion and $40 billion is needed each year to boost agricultural production and assist farmers worldwide, in order to curb the growing global food crisis. From United Nation's headquarters in New York, VO
NASA Identifies Shuttle Endeavour's Heater Glitch NASA says engineers at Kennedy Space Center believe they have identified the cause of the heater failure that forced the postponement of the launch of the shuttle Endeavour. NASA technicians say the f
65 航天飞机的飞行准备 DATE=7-4-01 TITLE=EXPLORATIONS #1959 - Preparing Shuttle for Space Flight BYLINE=Paul Thompson VOICE ONE: This is Shirley Griffith. VOICE TWO: And this is Steve Ember wi
今天我们要学的词是release。 Release, 是发行、公布的意思。 The company will release its second quarter earnings next month, 这家公司定于下个月公布第二季度的盈利。 The movie has made more than $1 million in the th
Hydrogen and Industries Hydrogen,the lightest and simplest of the elements, has several properties that make it valuable for many industries. It releases more heat per unit of weight than any other fuel.In rocket engines, tons of hydrogen and oxygen
The lawyer for two Americans jailed in Iran says he needs the signature of one more judge on bail papers before his clients can be released. Masoud Shafiei said Saturday he hopes Iran's judiciary will clear the way for the payment of $1 million bail
The Obama administration announced Thursday that it is releasing 30 million barrels of oil from the United States emergency reserve to offset production lost because of the fighting in Libya. The U.S. oil will be about half of a 60 million barrel int
Instead of burning coal, oil, or biomass to heat things up, scientists have found that its possible to use solar energy. For example, some experimental facilities use thousands of mirrors to reflect sunlight onto a large plate on a tower, heating it
What Is Fire? 火是物质燃烧过程中散发出光和热的现象,是能量释放的一种方式。火焰分为焰心、中焰和外焰,温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存,缺一