单词：normal temperature and pressure (ntp)
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WORDS AND THEIR STORIES - Expressions About Health By Jill Moss Broadcast: Sunday, September 05, 2004 Acknowledgement: mming jmma@mail.cmu.edu.cn >, Li Wei liw@cnooc.com.cn >, niutao nnttao@yahoo.com.
WORDS AND THEIR STORIES
PartI Getting ready A: 1.Freezing point 2.Relative humidity 3.Calm 4.Barometric pressure 5.Wildly scattered 6.Shower 7.lows 8.Variable 9.Thunderstorm 10.Gales B. 1.the freezing point of water is 0 or
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[00:05.56]Weather experts say this spring was the warmest in the United States in the past century. [00:13.66]They say the average temperature across the United States between March and May was about thirteen degrees Celsius. [00:23.07]That reportedl
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Cooking Under Pressure When you boil potatoes on the stove top, it can take half an hour to cook them til tender. But, when you boil them in a pressure cooker, instead presto, theyre ready in about five minutes. Whats the difference? What makes press
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
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With swine flu the big infectious disease story, you dont hear much about bird flu these days. And you may not have to look past your own nose for the reason. Because a new study finds that bird flu viruses may have trouble getting a good foothold i
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生病受伤时请医生看病 Do you need a doctor?用叫医生吗？ Please call an ambulance.请叫救护车。 I'd like to see a doctor.我要看病。 I'm not feeling well.我觉得身体不舒服。 would you send me a doctor?你能帮我请位医
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Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of
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By Carol Pearson Washington 22 August 2007 High blood pressure, or hypertension, is a disease usually associated with adults, but children can get it too and can have serious health problems because of it. A new study is now calling for pediatricians
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Midlife Blood Pressure Spike Ups Heart Attack Risk A new study indicates people who develop high blood pressure during middle age have a higher risk of heart attack, stroke, or related medical problems later in life. It's pretty well established that
VOA标准英语2011年(十二月)
this is Scientific American's 60 seconds' Science, i am Karan Hawking. This will just take a minute. Secret feeling chilly? Well, they may be a solution. Because researcher has generated genetic engineering mice: the kent field the cord. They worked
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SCIENCE IN THE NEWS - Pressure Rises on Scientific Publishers to Offer 'Open Access' / 2,400-Year-Old Gold Mask Found in Bulg... By Broadcast: Tuesday, August 31, 2004 (MUSIC) VOICE ONE: This is SCIEN
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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
Are you a normal person？ 你是正常人吗？ During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe
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【英文原文】 If I were to stop drinking water right now, how long could I live? There are several different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person c
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Dehydration 脱水 If I were to stop drinking water right now, how long could I live? There are different factors involve d here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person could di
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Probably all, or nearly all, who have experienced a cold winter, are familiar with the cheery cry of the snow as it is pressed against a hard surface by the steel tire of a wagon, for instance, or even onto a pavement by the heels of ones boots. Thos
英语时差8，16
Snowflakes are small ice crystals. Snowflakes near the ir melting temperature can, through hand pressure, be made to fuse into a snowball by a process of melting and re-freezing. The snow yields to pressure gently and progressively and doesnt make so
英语时差8，16
Maybe. A change in barometric readings may be part of the reason: Atmospheric pressure often drops right before bad weather sets in; this shift could cause body tissue to expand, which can lead to swelling and pain. 也许吧，气压变化有可能是
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