单词：liquid-oxygen temperature
单词：liquid-oxygen temperature 相关文章
First, let's start by busting one myth about yawning. A lot of people have the misconception that we yawn because our brains need more oxygen. However, several studies have shown that no matter how little oxygen is around a person, they won't yawn mo
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AGRICULTURE REPORT -January 8, 2002: Composting By Gary Garriott This is the VOA Special English AGRICULTURE REPORT. Many farmers around the world are composting to improve their soil so they can prod
农业与发展
By Gary Garriott Broadcast: July 22, 2003 This is Robert Covent with the VOA Special English Agriculture Report. Many farmers around the world are 1)composting to improve their soil so they can produc
VOA2003（下）-农业与经济
[00:00.00]Module 6 [00:03.29]Unit 2 Old MacDonald has a zoo. [00:09.64]Activity 1 [00:13.19]Sing. [00:21.63]Old MacDonald has a zoo.E|E|O! [00:33.38]And at that zoo he has some lions.E|E|O! [00:40.33]With roar here,roar there, [00:45.09]here a roar,t
新标准小学英语活动用书第2册(一年级起点)
[00:00.00]Revision module A Listening [00:03.63]14 Listen and check () what Lingling and Tony are going to do. [00:52.74]15 Listen again and say when they are going to do these things. [01:41.50]Words and expressionsRevision module A [01:46.12]think
新标准初中英语第二册
1. inbound，往内地的，入境的;片段中提到的inbound travelers表示入境旅客。 eg：This inbound login module generates the token. 这个入站登录模块将生成令牌。 2. staggering,惊人的，巨大的，难以相信的。 eg：
蒋健棠教你听英语广播
[00:00.00] MODULE THREE [00:03.94]Unit three [00:08.41]2.Listen and say the poem. [00:15.22]Who has seen the wind? [00:23.03]Not I or you. [00:25.40]But when the leaves are moving,The wind is pasing through. [00:30.97]Who has seen the wind? [00:33.55
新标准小学英语第五册（三年级起点）
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
英语听力文摘 English Digest
The Rolling Boil That Cools Your Food When you think of something boiling, you probably picture a pot on the stove, but theres another kitchen appliance that brings liquid to a boil, not to heat food, but cool it. It sounds crazy, but household refri
英语听力文摘 English Digest
A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm or die. So their tails and heat-shedding ears shrunk, and they grew thick coats of oily fur. But
60秒科学
Magmas 岩浆 Have you heard about liquid rock? 你听说过液态岩石吗？ It might sound funny to you. 这听起来可能很好笑。 How can a rock be liquid? While it can be. 岩石怎么可能是液体呢？但有时它还真是。 If the tem
与美国小学生一起学英文第8册
Gas 气体 There are three different kinds of matter. They are solids, liquids and gases. 物质分三种：固体、液体和气体。 Gas has no shape, so you can't touch gas. 气体本无形，所以你触摸不到。 Gas moves very freely. 气体能
与美国小学生一起学英文第5册
Mars 火星 Mars is a planet. 火星是行星。 It is next to the Earth. 它紧邻地球。 Its size is about one fourth of the Earth. 它约有四分之一个地球大。 Mars is not far from the Earth, but the environment is very different. 火星离
与美国小学生一起学英文第5册
The ice bucket challenge may seem cool if you live in a place which is usually quite hot, but for those who dwell in a cold climate the idea is probably less impressive. 冰桶挑战看起来相当酷，但前提是你处在热带地区。而对于那些
英语新闻
April.13th, 1970. Apollo XIII is crippled on its way to the moon when a tank containing liquid oxygen bursts in its command module. The 3 astronauts on board are forced to return to Earth relying on their lunar module as a lifeboat in space. 1743. Th
历史上的今天-2015年
AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im
农业与发展
The U.S. space agency is moving ahead with preparations for Thursday's scheduled launch of the space shuttle(航天飞机) Discovery on its mission to the International Space Station. NASA said it was loading liquid oxygen and liquid hydrogen into th
英语新闻
Want to step outside to take in the scenery or pick up some rocks? As familiar as it might look beyond the port hole, Mars is dangerously alien. The upside is the low gravity will give you super jumping abilities, the down, the almost complete lack o
自然百科2012年
Hot Drinks Linked to Cancer 热饮料或与癌症相关 From VOA Learning English, this is the Health Lifestyle report. VOA英语学习健康及生活方式报道。 The next time you make yourself a hot cup of tea or coffee, you might want to let it
2016年VOA慢速英语(十)月
This extra jostling pushes the atoms farther apart, causing the whole substance to slightly increase in size. If the substance cools off, its atoms stop pushing against each other so vigorously. This makes the substance shrink again. This connection
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