单词：equivalent continuous sound pressure level
单词：equivalent continuous sound pressure level 相关文章
How to deal with peer pressure? College students are often obsessed by peer pressure from their classmates or schoolmates. Facing others hard work and good performance in academic and other aspects, many students feel great pressure. Then, how to dea
四级范文背诵50篇
I Intend to Go to University 1--You've just left school, haven't you, Sheila? 2--Yes, I finished last Friday. 1--You sound relieved. 2--Well, yes. I don't mind admitting that I am. I enjoyed school. But I did object to having to go in every day once
听力每日练习补充
DIALOGUE 45 1--You've just left school, haven't you, Sheila? 2--Yes, I finished last Friday. 1--You sound relieved. 2--Well, yes. I don't mind admitting that I am. I enjoyed school. But I did object t
英语经典听力对话
Lesson 158 Part Ⅰ Warming-up Exercises Note-taking: Weather Bulletin 1. Information on Typhoon Nelson Centre: geographical region _______________________________ latitude / longitude ___________ nor
英语听力入门 (全四册)
DIALOGUE 45 I Intend to Go to University 1--You've just left school, haven't you, Sheila? 2--Yes, I finished last Friday. 1--You sound relieved. 2--Well, yes. I don't mind admitting that I am. I enjoy
英语听力训练连载
The air thins and they begin to lose the protective weight of the miles of air above them. The pressure is dropping, when you finally get to the stratosphere, and to the altitude we like to work at, it's only one one hundredth that of it's on the gro
探索与发现2014年
On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may make adults ears feel a little funny, prompting a few yawns to equalize the pressure. But for babies,
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Why Can We Hear the Sound of the Ocean in a Shell? Most children have probably wondered at the noise of roaring ocean waves magically captured inside seashells held up to their ears. According to popu
有声英文阅读
Why Can We Hear the Sound of the Ocean in a Shell? 贝壳传来海洋之音？ Most children have probably wondered at the noise of roaring ocean waves magically captured inside seashells held up to their ears. According to popular belief, anyone luc
双语有声阅读
Yvonne: This is 6 Minute English, I'm Yvonne Archer and Alice has kindly joined me for today's programme. Hello Alice. Alice: Hi Yvonne. Yvonne: Now Alice, how do you get around London? Alice: Ooh by bus, bicycle and usually the Tube. Yvonne: Aha, an
六分钟英语
Laos Faces Pressure to Alter Hydropower Ambitions Laos plans to build a hydropower dam on the lower Mekong River, but neighboring countries say more study is needed. Analysts say the high-level opposition puts pressure on Laos to alter its hydropower
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By Stephanie Ho Washington 03 January 2006 Authorities in the U.S. state of West Virginia are scrambling to rescue 13 coal miners who have been trapped 80 meters underground, after an explosion Monday
2006年VOA标准英语（一月）
Delilah: Could you turn that down? Josh: What? Delilah: Could you turn your music down? Josh: Oh, sure. Is there a problem? Delilah: No, theres no problem. I was just trying to do some reading and the ear- splitting music coming from your room made i
地道美语播客
1 Sound Design When it comes to creating a productive office environmentits more than just four walls. According to a Cornell University study, even low-level noise in open-style offices can result in higher levels of stress and lower task motivation
实用英语
台湾籍旅美老师今天交给我们的句子是： The impact of CO2 at 2500 parts per million on the human brain is the equivalent of a blood alcohol level of 0.08. 二氧化碳浓度为0.25% 对大脑的影响程度，相当于酒测值0.08。
留美老师带你每日说英文
Talking loudly on a bus, subway or anywhere in public, really 在公交、地铁等公共场合大声讲电话 So you broke rule number six and you're officially single again. That doesn't give you carte blanch to have long, loud conversations about
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下面给大家提供一篇关于生活中噪音的影响的托福阅读背景材料，希望能拓宽同学们的阅读面。 I'm grad to see so many of you here. We'vebecome really alarmed over the health center by thenumber of students we are seei
托福英语
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