豆知识 2011-07-24&07-30 无线信号发生器的发展史

It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. Signal generators play an important role in testing devices we use every day. The

2018年CRI World's first self-driving container straddle carrier debuts in Shanghai

A Chinese-made self-driving container straddle carrier, said to be the first of its kind in the world, is now undergoing testing at a port in Shanghai, reports China Central Television. A container straddle carrier is a freight carrying vehicle that

英语课程计划-Newspaper Carrier Day

Newspaper Carrier Day is an important day to celebrate one of societys forgotten workers the newspaper carrier. Every day, thousands of newspaper girls and boys get up early and carry heavy bags of newspapers around the streets. They deliver our news

PBS高端访谈:印第安纳州同意减免Carrier公司税收 以保留工作岗位

JUDY WOODRUFF: President-elect Trump made his first public speech today since the election on a trip to Indiana to tout a deal that he said made good on a campaign promise. Mr. Trump met with Carrier workers on the floor of their Indianapolis plant t

电信专业英英词典C-1

Cache - Generally, a place to temporarily store something. Regarding computers and telecommunications, it is a place where data is temporarily stored during transmission. Call - This is a connection b

电信专业英英词典F-2

Focal Length - Distance from the exact center of the dish to the center of the feed. Focal Point - The physical point in space toward which the satellite reflector dish directs the received signal so

电信专业英英词典D-5

DCE data circuit terminating equipment DCP digital communications protocol DCS digital cross-connect system DDD direct distance dialing DDN Defense Data Network Digit L Digital L is another amplitude

电信专业英英词典D-4

D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in

Bladeless Wind Generator Safe for Birds

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

VOA标准英语2012--US Crew Vigilant as Carrier Sails Through Strait of Hormuz

US Crew Vigilant as Carrier Sails Through Strait of Hormuz Ready and vigilant, the battle group steams through the waterway where a fifth of the worlds oil passes. Tehran has threatened to block the strait, and warned U.S. ships not to come. For Navy

美国国家公共电台 NPR A U.S. Aircraft Carrier Anchors Off Vietnam For The First Time Since The War

RACHEL MARTIN, HOST: The USS Carl Vinson is in De Nang, Vietnam. And it is the first U.S. aircraft carrier visit since the end of the Vietnam War. And it comes at a time of increasing tension between the U.S. and China and between China and some of i

音乐咖啡厅:Carrier Of A Secret-Sissel

Sissel Kyrkjebo，挪威著名的女歌手，以其空灵清澈的音色踏入歌坛超过10年。《All Good Things》是Sissel首张唱流行曲的唱片，十一首歌曲虽然还可发现不少令人联想到Enya一类的音乐元素，但歌曲编排都渗入了具备时代感的流行曲节奏。唯一真正保留Sissel原来风格的，或

China making preparations for aircraft carrier

BEIJING, March 29 (Xinhua) -- China is conducting scientific testing and training exercises for its aircraft carrier, Defense Ministry spokesman Yang Yujun said Thursday. It takes time for weapons and equipment to be developed from scientific researc

US, China signal new phase for ties

BEIJING, March 13 (Xinhua) -- Both China and U.S. signaled that the world's two biggest economies should explore a road of new-type relations. The new type of relations between major powers should be based on mutual respect, cooperation and seeking w

Forecasts signal late-week launch of Tiangong-1

BEIJING, Sept. 26 (Xinhuanet) -- Weather forecasts showed that Thursday or Friday might be suitable for launching the Tiangong-1 spacecraft, experts said. The unmanned spacecraft, part of China's first spacecraft rendezvous and docking mission, was s

China conducts flight landing on aircraft carrier

China conducts flight landing on aircraft carrier LIAONING AIRCRAFT CARRIER, Nov. 25 (Xinhua) -- China has successfully conducted flight landing on its first aircraft carrier, the Liaoning, naval sources said. A new J-15 fighter jet was used as part

China's first aircraft carrier commissioned

DALIAN, Sept. 25 (Xinhua) -- China's first aircraft carrier was delivered and commissioned to the People's Liberation Army (PLA) Navy Tuesday after years of refitting and sea trials. Overseen by President Hu Jintao and Premier Wen Jiabao, the carrier

2018年CRI China's first homegrown aircraft carrier begins sea trials

China's first domestically-built aircraft carrier has set out from a port in Liaoning on its maiden voyage to start sea trials. The 50,000-ton vessel, codenamed Type 001A, is the second aircraft carrier launched by China. It follows the carrier Liaon

听歌学英语:空灵清澈天籁之音Sissel—Carrier Of A

听歌学英语:空灵清澈天籁之音SisselCarrier Of A Secret Sissel Kyrkjebo，挪威著名的女歌手，以其空灵清澈的音色踏入歌坛超过10年.是Sissel首张唱流行曲的唱片，十一首歌曲虽然还可发现不少令人联想

India to Bail Out National Airline Carrier

The Indian government will give billions of dollars to rescue its debt-ridden national carrier, Air India. But the government has deferred a decision on allowing foreign airlines to pick up a stake in private Indian airlines, which are also strugglin