单词：propeller turbine engine
单词：propeller turbine engine 相关文章
[00:04.57]Excitement fills the early morning air as you arrive at learn to recognize and name each part of the parachute. [00:19.17]You also learn what each part does. [00:22.05]The excitement builds as your teacher describes each stetp it of the jum
美国英语听力80篇
Part 3 Taking a pilot 1. I require a pilot. 2. Pilotage is compulsory here. 3. My ETA at Dalian pilot station is 22:00 local time. 4. What is your distance from Londan pilot station? 5. Advise you to rig pilot ladder on port side. 6. Switch on lights
海事英语
[00:07.58]Igor Sikorsky was born in the city of Kiev, Russia; on May 25, 1889. [00:16.12]His mother was a doctor. [00:15.12]His father was a professor of psychology. [00:18.59]Igor became interested in science when he was very young. [00:23.82]He was
美国英语听力80篇
By Brian Padden Paris 20 June 2007 The 47th International Paris Air Show is running this week. It is a showcase of aviation and aerospace technology. And as VOA's Brian Padden reports, this is big, big business with more than 2,000 exhibitors from 42
2007年VOA标准英语（六月）
Backup Motor May Save Pilots Lives 备用电机或可挽救飞行员的生命 In case of engine failure, multi-engine aircraft often have enough power to land safely, but single-engine planes have a very small chance of avoiding a fatal crash. Now, t
VOA标准英语2015年(七月)
By Brian Wagner Key West, Florida 06 March 2008 Researchers in the United States are set to begin testing underwater turbine systems that can produce electricity from ocean water flows. The projects in Florida are the latest efforts to find alternati
VOA标准英语2008年（三月）