单词：blade tip vortex
单词：blade tip vortex 相关文章
Five Did you tip the bellboy? 你付小费给那个服务生了吗？ 1 Introduction A It is the custom to give tips to waiters in restaurants and taxi drivers. 在餐馆给服务员小费、给的士司机小费被认为是习俗。 B It is also American custom when visiting friends t
零距离美语会话
This is Whats Trending Today When it comes to weather, it is hard to sound more frightening than to call a storm a bomb cyclone. 谈到天气，很难听到什么比炸弹旋风更可怕的了。 But that is how weather experts are describing a huge
2018年VOA慢速英语(一)月
不怕伤鸟：无扇叶涡轮风力发电机 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of wind generator developed in Spain offers a crea
VOA双语新闻 2015年6月
I once read an essay by Joseph Epstein in which he describes the glee and suspense in watching a stranger read his essay． Its happened to many novelists too the coincidental （dreamed－about） situation where you encounter a stranger reading pag
英语作文
你会写商业信件吗?要传达的内容固然是重头戏，格式和礼貌上的细节问题也不容疏忽。下面就是一些写作中容易忽略掉的小问题，看看你有没有犯吧。 1、人家的名字千万不要错。 老一辈的看
英语作文
Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t
2015年VOA慢速英语(七)月
Bladeless Wind-Power Generator is Friendly to Birds 新型风力发电机避免误伤鸟类 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of w
VOA标准英语2015年(六月)
新型风力发电机不会伤及鸟类 In 2002, Spanish inventor David Yanez saw a short film about the Tacoma Narrows Bridge in the U.S., collapsing in strong wind. 2002年西班牙发明家大卫亚尼斯看了一部关于强风造成美国塔科马
VOA标准英语2015年(十二月)
Bird-friendly Bladeless Wind Turbine Mimics Nature Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, the devices' fast-moving blades kill up to 300,000 birds annuall
VOA标准英语2015年(十一月)
China's national observatory renewed its orange alert for cold wave- the second highest level - on Sunday evening. Sun jun, chief forecaster of the National Meteorological Center, says the strong cold front is linked with the activity of the polar vo
英语新闻
The mascot, Kangkang, debuted on Thursday. It's based on a colored ink prototype painted by well-known Chinese artist Han Meilin. The 80-year-old is the man behind the famous fuwa, the mascots for the Beijing Olympic Games in 2008. For the Spring Fes
英语新闻
A polar vortex, also known as a circumpolar vortex, is a wind current that circulates above the North and South Poles. The currents sit like spinning hats above the Poles. 极地涡旋，又叫环极涡旋，是环绕在南极和北极上空的一股气
英语新闻
Now let's get some of the science behind the cold. What is driving these temperatures and how long is it expected to last. We bring in meteorologist Alex Wilson of US' Weather Channel. As even talking about this unusual cold, something you've been he
CCTV9英语新闻2014年01月
What Is the Polar Vortex? Record cold weather in the United States is forcing schools and businesses to close. The polar vortex, as it is called, has also canceled flights and suspended mail delivery. The temperature in Fargo, North Dakota, dropped t
2019年VOA慢速英语(二)月
When a prospective employer makes unreasonable demands on you before things start to get serious, it's a strong signal to hit the road. 当一位未来雇主在工作还没正式之前就提出了无理要求，那么明显说明你需要跑路了。
实用英语