(redirected fromHeavier than air flight) Thesaurus Encyclopedia Related to Heavier than air flight:Fixed wing aircraft air·craft (âr′krăft′) n.pl.aircraft A machine or device, such as an airplane, helicopter, glider, or dirigible, capable of atmospheric flight. ...
And he told us, "I can state flatly that heavier-than-air flying machines are impossible." Experts often astonishingly prone to error NASA is sending a light, autonomous rotorcraft, dubbed the Mars Helicopter, to demonstrate the viability of heavier-than-air vehicles on Mars and get a bird'...
Society in 1895(“heavier-than-airflyingmachinesareimpossible”) to the Chairman of IBM in [...] wipo.int wipo.int 技术发展的速度,常常连专家都始料未及:从1895年的皇家科学院院长开尔文勋爵(“比空气重的飞行器飞上天是不可能的”),到1943年的IBM主席(“我想全球大概只需要五台计算机就够了”),再到...
Therefore, aprecisedefinitionoftheaircraftis:thereisapower-drivenaircraft,fixedwingaircraftandisheavierthanair. 因此飞机的精确定义就是:飞机是有动力驱动的有固定机翼的而且重于空气的航空器。 zhidao.baidu.com 8. Butitisworthrememberingthatjustoveracenturyago,heavier-than-airflightseemedanimpossibledream. ...
“Heavier-than-air flying machines are impossible,” was the confident assertion of British scientist Lord Kelvin in 1895. 1895年,英国科学家开尔文勋爵大胆地宣称:“重过空气的飞机飞不了。” jw2019 That fluid is much heavier than air. 这种充满内耳的液体是比空气重的。 jw2019 We've inst...
Quest for Flight: John J. Montgomery and the Dawn of Aviation in the West "Heavier-than-air flying machines are impossible." Lord Kelvin, President of the Royal Society, 1895. The things they say .. While government and military officials dawdled, private citizens the world over were captiva...
because propaneisheavier than airandwill settle on the ground. graco.com graco.com 一定要闻接近 地面的地方,因为丙烷比空气重并沉在地上。 graco.com graco.com Aeroplane:Means a power-drivenheavier-than-airaircraft, deriving its lift in flight chiefly from aerodynamic reactions on surfaces ...
aTo produce electricity on a large scale, a commercial wind farm will have to use bigger turbines than Hywind does, but it’s difficult enough to balance such a large turbine so high on a floating spar in the middle of the ocean. To make that turbine heavier, the whole spar’s to desi...
【题目】 My father is a little than my mother. A. heavy B. heavier C. more heavy D.much heavier 试题答案 【答案】B 【解析】 试题分析:句意:我的父亲比我的母亲重一点儿。Heavy重的;heavier更重的;more heavy不符合英语表达习惯;much heavier重得多。根据than可知该用比较级。A little或much都可...
Society in 1895(“heavier-than-airflying machines are impossible”) to the Chairman of [...] wipo.int wipo.int 技术发展的速度,常常连专家都始料未及:从1895年的皇家科学院院长开尔文勋爵(“比空气重的飞行器飞上天是不可能的”),到1943年的IBM主席(“我想全球大概只需要五台计算机就够了”),再到1981...