【航空学】飞行高度限制

Powerless Aircraft Sets Altitude Record

Two pilots recently set a new altitude world record for gliders. A glider is an aircraft that does not have an engine. They are pulled into the air by powered airplanes and then released. They are designed to ride warm, rising air to gain altitude. T

发表于:2019-01-03 / 阅读(154) / 评论(0)

2017年VOA慢速英语(九)月

学个词Learn a Word 第1561-restriction

今天我们要学的词是restriction. Restriction是限制的意思。President Obama vowed to implement new measures to curb violence in American cities, including reasonable restrictions on gun ownership. 美国总统奥巴马誓言，要减少美国

发表于:2019-01-06 / 阅读(82) / 评论(0)

英语单词荟萃

Chinese island province pilots in low-altitude test flight

HAIKOU, Jan. 28 (Xinhua) -- China's aviation authorities(民航当局) on Friday started to allow helicopters to fly in low-altitude airspace over the tourist island of Hainan on a trial basis for the first time. The aim is to eventually open a part

发表于:2019-01-19 / 阅读(93) / 评论(0)

英语新闻

Low-altitude airspace to open up across China from 2013

SHENYANG, Aug. 23 (Xinhua) -- China will relax the ban on the use of low-altitude airspace across the country starting in 2013, the country's air traffic authorities said Thursday. A series of reforms will be implemented in five to ten years, creatin

发表于:2019-01-22 / 阅读(98) / 评论(0)

英语新闻

World's highest altitude swimming race kicks off

GUIDE, China, Jan. 12 (Xinhua) -- The 3rd International Extreme Race of Winter Swimming across Yellow River started here in northwest China's Qinghai Province on Saturday. Being hosted in Guide County at an altitude of 2,200 meters in Tibetan Plateau

发表于:2019-02-09 / 阅读(51) / 评论(0)

英语新闻

找谁倚靠(慢速)04：改变高度 Change altitude

Change altitude 改变高度 Rebecca had decided that her best chance of getting hired by a company doing geological survey work in the Alaskan wilderness was to earn a private license to fly twin-engine planes. 丽贝卡觉得，要想进入在阿拉斯

发表于:2019-03-15 / 阅读(167) / 评论(0)

找谁倚靠(慢速)

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air turnback

allods

anionoid-polymerization

bank holding companies

Birutin

block accumulator

bloom shears