单词:propeller-hull vortex
单词:propeller-hull vortex 相关文章
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
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
From what country is that ship? 那艘船是哪个国家的? You don't know? Fine, so much the better! At least its nationality will remain a secret to you. Go below! 您不知道?好啊!太好了!它的国籍,至少对您来说,是个谜。
Captain Nemo decided to make for the ocean floor by submerging on an appropriately gradual diagonal with the help of his side fins, which were set at a 45 degrees angle to the Nautilus's waterline. 尼摩船长决定这样探测海底,即使用船侧
he stopcocks of the ballast tanks were then opened wide, and 100 cubic meters of water rushed in, increasing the Nautilus's weight by 100,000 kilograms. 储水池的龙头于是完全打开来,一百立方米的水都流进去,把诺第留斯号的
Extreme Cold Freezes Much of United States From VOA Learning English, this is In the News. A weather system known as a polar vortex brought dangerously cold weather to large parts of the United States this week. A polar vortex is a cold, thick low pr
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
Noisy Ships Have Whales Yelling to be Heard Ferries, freighters and fishing and tour boats are part of the tableau that often makes living by the sea postcard-pretty and desirable. But all that maritime activity creates cacophony underwater - and has
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
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
Temperatures in Beijing dropped to below minus-10 degrees Celsius on Friday. Forecasters are warning the temperatures are going to hit a 30-year low through this weekend. Yu Bo is the chief forecaster with the Beijing Municipal Meteorological Center.
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
Daylight appeared. The morning mists surrounded us, but they soon broke up. 天亮了。朝雾笼罩着我们,但不久就消散了。 I was about to proceed with a careful examination of the hull, whose topside formed a sort of horizontal platform
The vessel hadn't stirred, because I obviously would have felt its hull vibrating under the influence of the propeller. 船不动了,因为我不感觉到船身在推进器推动下所发生的震颤。 It had undoubtedly sunk into the watery deep
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
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
Science and technology 科学技术 Marine technology 船舶技术 A voyage of discovery 探索未知之旅 New technology can make ships more versatile, more efficient and cleaner, too 新技术使轮船更万能、更高效、也更环保 IN THE da
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。
What are they, captain? I asked. 船长,什么方法呢?我问。 Here I'm naturally led into telling you how the Nautilus is maneuvered. 这样一来,我自然得告诉你我是怎样驾驶诺第留斯号的。 I can't wait to find out. 我很想
There are no structural deformities to worry about, because the double hull of this boat has the rigidity of iron; no rigging to be worn out by rolling and pitching on the waves; no sails for the wind to carry off; no boilers for steam to burst open;