单词：bhst(bottom hole static temperature)
单词：bhst(bottom hole static temperature) 相关文章
This is the VOA Special English Development Report. Indonesian women sell their harvest in a traditional floating market Before refrigerators were invented, the next best thing was an ice box. But another way to keep food fresh is to use an evaporat
VOA慢速英语2009年（十一）月
How Does Ice Cool Drinks? Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? Heat is a measure of molecular activity: the faster a
英语听力文摘 English Digest
Is My Brain Static Or Constantly Changing? Scientists used to think that for all its complexity, the brain was pretty static. Once the brain matured, it essentially stopped growing and changing. And when neurons, or brain cells, were lost or damaged,
英语听力文摘 English Digest
Why Does Plastic Wrap Cling To Itself? What makes kitchen plastic wrap cling so maddeningly to itself, and so conveniently to the sides of bowls and plates? Plastic wrap clings for two reasons: its elastic and its sticky. That probably seems pretty o
英语听力文摘 English Digest
Why Are Nights More Calm Compared To The Day? More often than not, the wind dies down at night after a blustery day. Where does the wind go? Why are nights generally more calm than days? The difference between calm nights and windy days is the sun. D
英语听力文摘 English Digest
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
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
SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i
科技之光
Sleep through the static~~ 演唱者：jack johnson trouble travels fast when you're specially designed for crash testing or wearing wool sunglasses in the afternoon come on and tell us what you're trying to prove because it's a battle when you dabbl
E乐吧
Capping Stack deploys from on board the Transocean Discoverer Inspiration on the MC 252 location 11 July 2010 Oil company BP is considering a so-called static kill to seal off its damaged Macondo well in the Gulf of Mexico, even as plans go forward t
VOA标准英语2010年(七)月
黑洞是一种引力极强的天体，就连光也不能逃脱。当恒星的史瓦西半径小到一定程度时，就连垂直表面发射的光都无法逃逸了。这时恒星就变成了黑洞。说它黑，是指它就像宇宙中的无底洞，
英语听力文摘 English Digest
A Boy, A Dog, A Frog and A Friend by Mercer and Marianna Mayer 1 One day a boy went fishing with his dog and his frog.He sat by the side of a pond and patiently waited for a fish to bite. 2 All of a sudden he felt a bite! 3 It had to be a big fish be
英语听力文摘 English Digest
Thermometers just tell you the temperature. Thermostats need to do more than that. In addition to reading the air temperature, thermostats also turn your furnace on if the air gets too cool, and turn it off again when the air heats up. How do they do
英语听力文摘 English Digest
The Lowest Note in the Universe 宇宙中的最低音 It's coming from a black hole in the Perseus Cluster, about two hundred fifty million light years away. A black hole？And outer space？That makes sound? Whats happening out there is that interga
英语听力文摘 English Digest
Ocean Heat 海洋热量 Ya?l: I hear a lot about global warming, but how do scientists take the Earths temperature? Don: Great question. Most of the excess heat trapped by greenhouse gasses like carbon dioxide ends up in the oceans.Thats because the
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It's a common enough sound in summer, after the wind finally picks up on a hot and humid afternoon, as the rain starts spattering down in big, fat drops--you're in for a full-blown thunderstorm. It's much less common in winter, even during a snow sto
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A Deep Hole in the Pole AMANDA望远镜（新华社电讯稿用的是南极介子和高能中微子探测器阵列名字），被埋藏在南极冰块下1.5公里深处。路透社2001年3月21日报道，这台望远镜首次探测到中微子。中微
英语听力文摘 English Digest
FM Static - Tonight （只想紧握你的手） I remember the times we spent together on those drives We had a million questions all about our lives and when we got to New York everything felt right I wish you were here with me tonight I remember th
流行英文歌曲
Sugar bowls and hole 孔隙是岩土固体矿物颗粒间的空间。岩土中直径大于1毫米、重力水可于其中自由运动的孔隙，是大孔隙（macro-pore，large pore）。岩土中直径为0.01～1毫米、重力水和毛管水可存其
英语听力文摘 English Digest
Cold Feet and Hot Wings 鸟通常只在休息或睡觉的时候才单脚站立。鸟类学家认为，他们这么做是为了减少能量的消耗，并把一只脚收到翅膀之下休息，通常他们会交替使用两只脚独立。披着一身羽
英语听力文摘 English Digest