单词：maximum rated sound-power level
单词：maximum rated sound-power level 相关文章
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
Noise can make food taste more bland, but also increase the perception of its crunchiness. Christopher Intagliata reports 餐馆里的噪音除了会打扰到你的交谈之外还会对食物的口味产生什么影响呢？ A noisy restaurant can di
60秒科学
VI. Nuclear Emergency Preparedness Exercises,Drills, Training and Public Communication核应急演习演练、培训与公众沟通 China attaches great importance to nuclearemergency preparedness exercises, drills, trainingand public communication,
英语笔译
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
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
Explanation: When the 13 original states united (or came together) to make a new country, each of the states wanted to keep its powers and independence (or ability to make its own decisions). But the new federal (or national) government would also ne
美国精神
Explanation: States are vested with (or are given) many powers and responsibilities, so they need to have strong leadership (or direction and management from one person or a small group of people). The leader of each state is called a governor. Each
美国精神
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
The Power in Gratitude When my older son was diagnosed with Attention Deficit Hyperactivity Disorder, my first reaction was relief － I finally knew the reason for his behavior. However, I was also overwhelmed with sadness, fear and anger. I felt so
每天一点英文
A noisy restaurant can distract you from your dinner conversation. But all that clatter may also drown out the taste of your food, making it more bland. That's according to a study in the journal Food Quality and Preference. Researchers recruited 48
Scientific American(十)月
The World Health Organization says heart disease kills about 17 million people every year and that it will become the leading cause of death in developing countries. But now, there is some hope. A new device is being marketed that could save countles
VOA标准英语2010年(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
YICHANG, Oct. 30 (Xinhua) -- China's Three Gorges Dam on Sunday reached its designed highest mark, the second time for the world's largest water control and hydropower project to run at full capacity. The water level hit 175 meters at 5 p.m. after st
英语新闻
本期内容： Half of the sugar young children in England consume comes from unhealthy snacks and sweet drinks, figures show. On average, primary school children have at least three sugary snacks a day, Public Health England found. This means they
夏说英语新闻晨读
1. Nuclear regulators have raised the severity level of the crippled nuclear power plant after assessing radiation leaks from the facility. The Level 7 designation is on par with the Chernobyl disaster. Japanese officials say any health effects cause
美联社新闻一分钟2011(四月)
The completion of the system, first proposed in 2011, has been announced at a Beijing conference organized by the International Atomic Energy Agency. Liu Hua is the chief engineer of China's National Nuclear Safety Administration. In our central-leve
英语新闻
战胜失败Maintain your enthusiasm 保持热情 Not only you should keep on trying, you should also do it with the same level of enthusiasm as when you first began. 你不仅要不断尝试，还要保持住最开始的那种热情的状态。 Othe
英语听力广播—Listening
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