单词:heavy water vapour
单词:heavy water vapour 相关文章
Every day the sun's rays change thousands of tons of liquid water into water-vapour; 每天, 太阳光都能够将数千吨的液态水转化为水蒸气; and this water-vapour mingles with the air, and is carried along by the wind. 随后, 水蒸气
When we change a liquid into vapour, and cool this vapour till it is liquid again, 将水加热成水蒸气, 然后对其进行冷却直至再次液化, we are said to distil the liquid, and the apparatus for doing this is called a still. 这个过程就
Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出:我们能够通过加热液体使得它们蒸发, 变成水蒸气或气体; and by taking away heat from these gases, or cooling them, we tu
Lesson 88 Condensation 第88课 冷凝 When the water in a kettle boils, it boils first at the bottom. 当水壶中的水沸腾时, 首先开始沸腾的是底部的水。 We cannot see this in a kettle, because the kettle is made of iron. 我们无法
By Naomi Schwarz Dakar, Senegal 29 August 2007 More than a 250,000 residents of Liberia's capital, Monrovia, have been overwhelmed by water from torrential rains and flooding from the nearby St. Paul River. The rains have left them without safe drink
AS IT IS 2016-01-07 Project to Bring Clean Water to Remote Part of Kenya 肯尼亚偏远地区获得净水项目 In Japan, one person uses about 374 liters of water. And in Kenya, one person uses about 20. Tomoyuki Tsutsui and Keitaro Kakoi are Japan
Asia Floods Take Heavy Toll on Local Economies Floodwaters in central Thailand have inundated industrial parks and manufacturing centers, adding to the mounting economic costs of the disaster. Cambodia, Vietnam and Laos are also continuing to tally t
Asian Water Summit Focuses on Security, Disaster There was no sign of a water shortage here in northern Thailand as delegates gathered for the Asia-Pacific Water summit. But inside, there was talk about an impending crisis facing Asia. For the region
There is a place in that city where the road runs between two deep ponds. 那所城市有这样一个地方:中间是路,两边是池塘。 It is a narrow road, with the water coming right up to the edge on each side. 这是一条羊肠小道,两
Lesson 70 Evaporation 第70课 蒸发作用 Let us fill a small kettle with water, and place it on the fire. The water will soon begin to boil. After an hour or so we shall find the kettle quite empty, although no one has touched it since it was plac
The finger which is wet with alcohol will be dry before you can count ten, while the finger which is wet with water may take a minute or more to dry. 在你数到十之前, 那根沾有酒精的手指就会变得干燥, 而另外一根沾有水的手指
LONDON, Aug. 10 (Xinhua) -- Tunisian swimmer Oussama Mellouli outclassed a field of experienced rivals to win the men's 10km marathon swimming at the London Olympics on Friday, making himself the first swimmer to win medals both in pool and in open w
JUDY WOODRUFF: Now we turn to our ongoing coverage of the aftermath of Hurricane Sandy. Tonight, special correspondent Rick Karr looks at environmental concerns in New York City. Many residents in Brooklyn want to know more about the risks of chemica
Don't you see the heavy smokes from the big chimneys? Don't you smell the gas from the motors all around the streets? We've got much dirtier air! the icebergs are melting from the warmer winter because of the air pollution! 难道你没有看到从大烟
Residents in the south have been inundated by heavy rainstorms for several months. And there's no let-up in sight, as weather authorities predict more rain coming over the next 10 days. Southwest China and regions along the middle and lower reaches o
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
Uninterrupted rainfall has caused afootball stadium to flood so much the goalposts are under water and it nowlooks like nothing more than a giant swimming pool. 强降雨让体育场变成了一个巨大的游泳池。 Heavy storms in the city of Ezh
1. In the Midwest, it's a data pickup after violent weather marked by tornadoes. In Arkansas, seven people are dead, pushing this year's storm death toll in the state to more than two dozen people. Meteorologists say more than 25 tornadoes may have t
While explaining stress management to an audience, the lecturer raised a glass of water and asked 'How heavy is this glass of water?' Answers called out ranged from 20g to 500g. 当向听众解释压力管理的时候,讲师拿起一杯水问道:这