单词:steam-water mixed heat exchanger
单词:steam-water mixed heat exchanger 相关文章
Section A [00:01.23]1. W: Excuse me.Did you say that these jackets were fifteen dollars? [00:07.00]M: No,I said fifty dollars. Here's the price on the tag. [00:11.70]Q: How much are these jackets? [00:15.67]2. M: The plane's leaving at 5:30. [00:18.6
What did I find? Violet asked anxiously. The man at the grading counter held up her stone between his thumb and forefinger. A very nice Mama Bear ruby, he proclaimed. Id say its easily twenty carats. Wow! exclaimed Benny. The gem inspector put the st
On Saturday afternoon the children walked to the zoo. Everything seemed to be going smoothly since the electricity had been restored in the kitchen. Even Edward was in a good humor. It was a cloudy day, but it didnt dampen the childrens spirits. And
Technology Report - How to Do It: Making Paper by Hand This is the VOA Special English Technology Report. The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley. In those days, paper was made from st
Lesson 8 A LUMP OF PUTTY 第八课 一块腻子(油灰) Did you ever see a man put in a pane of glass? He first cuts away the hard stuff which holds the old glass in its place. This hard stuff is called putty. Then with some fresh putty he fixes
We want to take a closer look at just how extreme temperatures and humidity effect our bodies almost immediately, how our bodies try to fight back and keep cool. So ABC's Dr. Richard Besser actually put this to the test for us. Meet here this morning
This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's
Volcano 火山 Many mountains are the result of volcanoes. 许多山峰都是火山的产物。 A long time ago, many mountains were formed by volcanic activity. 很久以前,很多山峰都是由火山运动形成的。 When a volcano explodes, it
This is the VOA Special English Development Report. The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley. In those days, paper was made from strips of the papyrus plant. Modern paper-making began
This is the VOA Special English Development Report. The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley. In those days, paper was made from strips of the papyrus plant. Modern paper-making began
SCIENCE IN THE NEWS - Heat May Be Natures Deadliest Killer FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And I'm Bob Doughty. This week, we tell about health problems linked to extreme heat. We tel
SCIENCE IN THE NEWS - Heat May Be Natures Deadliest Killer FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And I'm Bob Doughty. This week, we tell about health problems linked to extreme heat. We tel
How to Survive the Heat From VOA Learning English, this is Science in the News. Im Anna Matteo. And Im Christopher Cruise. Today we talk about hot weather, and the problems it can cause. We also tell you about the best ways to prevent and treat probl
By Greg Flakus Albuquerque, New Mexico 25 July 2007 Large scale collection of solar power arrays As the world searches for ways to produce energy without burning fossil fuel, there is increased interest in solar energy. One place associated with sola
A severe heat wave sweeping across the plains of India has claimed at least 100 lives. It has also led to power and water shortages in many parts of the country, including the capital, New Delhi. Dogs join daily wage laborers and rickshaw pullers as
83 炎热的天气可能引发疾病甚至导致死亡 DATE=8-14-01 TITLE=SCIENCE IN THE NEWS #2137 - Heat and Health BYLINE= Oliver Chanler VOICE ONE: This is Bob Doughty VOICE TWO: And this is Sarah
Lesson 35 Getting up Steam 第35课 蒸汽往上冒! Do you want to know what steam is? Let us get a lump of ice, or a snow-ball, and place it in a saucer in a warm room. It soon melts, and then the saucer is half full of water. If we leave the sau
There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th
Lesson 28 A Block Of Salt 第28课 一块盐 Every day we eat some of the white powder which we call salt. Salt does our bodies good, and keeps them healthy. We eat it at dinner along with our meat. We eat it, too, with eggs, and watercress, and with
What the Student Say in Science Classes 自然科学课上学生们都说了什么 The following quotations were gleaned from classroom discussions in 5th and 6th grade science classes. 下面的这些话都是从五六年级的自然科学课的课堂