单词：sound pressure levels
单词：sound pressure levels 相关文章
Wilderness Areas Suffer from Human Sound 人类噪音害苦了野生生灵 Noise can prevent an animal from hearing other important sounds. 噪音会妨碍动物听到其他重要的声音。 Rachel Buxton, a conservation biologist at Colorado State
2017年科学美国人(五)月
Unit 99：Take 10，000 steps a day 第99单元：每天走一万步 A research study looked at 332 middle-aged,overweight men who needed to lose weight and lower their blood pressure and cholesterol levels. 一项针对三百十二名超重，需要减
减肥瘦身英语口语话题
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,
初学者听力文摘精选
北京奥运28大项 参与，竞争，分享，进步 Synchronized Swimming 花样游泳 MUSIC ACCOMPANIMENTS 音乐伴奏 英文原文 The Sound Centre Manager shall be responsible for the securing and properly presenting the accompaniment for each routine. For FINA competiti
奥运28大项比赛
A CDC study of 4,000 adults found that more than 90 percent ate more sodium than recommended levels. Even if you have a light hand with the salt shaker, you probably get lots of sodium in processed or restaurant meals. But sodium can contribute to hi
60秒科学
Why do golf balls have dimples(酒窝, 涟漪)?So that they look cute? NO! Because the dimples maximize the distance golf balls travel. Dimpled balls travel up to four times farther than smooth-surfac
奥运英语
今天我们要学的词是sound off。 To sound off about something, 有抱怨的意思。 Local residents sounded off about plans to cut library hours, 当地居民对缩短图书馆的开放时间表示不满。 The player sounded off about the te
英语每日一词
One Billion Young People Risk Hearing Loss From Loud Music 十亿年轻人因为听大声的音乐面临失去听力的危险 From VOA Learning English, this is the Health and Lifestyle report. 美国之音这里是健康和生活方式报道。 One
2015年VOA慢速英语(四)月
Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h
VOA标准英语2011年(四月)
DAVID GREENE, HOST: Both President Trump and Vice President Mike Pence will go to Dallas on Friday for the NRA's annual convention. On one hand, the president's presence shows that the NRA has staying power. But the organization has also faced fresh
2018年NPR美国国家公共电台5月
By David McAlary Washington 16 May 2006 Long distance air travel can increase the risk of blood clots in the legs, a potentially fatal condition that has been known for more than half a century. Now B
2006年VOA标准英语（五月）
SCIENCE IN THE NEWS - Stress: What It Can Do to Us, What We Can Do About It By Cynthia Kirk Broadcast: Tuesday, May 17, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm
科技之光
SCIENCE IN THE NEWS - September 3, 2002: Stress and Illness By Cynthia Kirk VOICE ONE: This is Sarah Long. VOICE TWO: And this is Steve Ember with Science in the News, a VOA Special English program ab
科技之光
By Carol Pearson Washington 09 April 2008 Diabetics have a greater than average chance of having a heart attack or stroke. But new research indicates that lowering blood pressure and cholesterol below recommended guidelines seems to reduce these risk
VOA常速英语2008年（四月）
今天我们要学的词是sound off。 To sound off about something, 有抱怨的意思。 Local residents sounded off about plans to cut library hours, 当地居民对缩短图书馆的开放时间表示不满。 The player sounded off about the te
英语单词荟萃
一篇文章的各个段落之间、各个句子之间都存在一定的逻辑关系，正确理解这样的逻辑关系对于阅读者有着很重要的意义：首先，借助上下文之间的逻辑关系，阅读者能够更好地理解文章大意
大学四六级阅读
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