深海科学考察中需要利用深潜设备进行观测和采样等,其中,我国新近研发的“蛟龙号”深潜器属于下列________系列。 A: HOV B: ROV C: AUV D: Glider
深海科学考察中需要利用深潜设备进行观测和采样等,其中,我国新近研发的“蛟龙号”深潜器属于下列________系列。 A: HOV B: ROV C: AUV D: Glider
深海科学考察中需要利用深潜设备进行观测和采样等,其中,我国新近研发的“蛟龙号”深潜器属于下列________系列。 A: ROV B: AUV C: Glider D: HOV
深海科学考察中需要利用深潜设备进行观测和采样等,其中,我国新近研发的“蛟龙号”深潜器属于下列________系列。 A: ROV B: AUV C: Glider D: HOV
Which of the following statements is an opinion A: Ultralight planes use snowmobile engines that let them cruise at about 500 miles per hour. B: John Moody used a 12-horsepower engine to power his Icarus II hang glider. C: The use of ultralight planes will increase in such areas as crop dusting and aerial photography. D: Otto Lilienthal made more than 2000 flights in Germany in the 1890’s in what were actually hang gliders.
Which of the following statements is an opinion A: Ultralight planes use snowmobile engines that let them cruise at about 500 miles per hour. B: John Moody used a 12-horsepower engine to power his Icarus II hang glider. C: The use of ultralight planes will increase in such areas as crop dusting and aerial photography. D: Otto Lilienthal made more than 2000 flights in Germany in the 1890’s in what were actually hang gliders.
中国大学MOOC: 滑翔机(glider)是一种没有动力装置,重于空气的固定翼航空器。在无风情况下,滑翔机在下滑飞行中依靠自身重力的分量获得前进动力,这种损失高度的无动力下滑飞行称 。在上升气流中,滑翔机可像老鹰展翅那样平飞或升高,通常称为翱翔。
中国大学MOOC: 滑翔机(glider)是一种没有动力装置,重于空气的固定翼航空器。在无风情况下,滑翔机在下滑飞行中依靠自身重力的分量获得前进动力,这种损失高度的无动力下滑飞行称 。在上升气流中,滑翔机可像老鹰展翅那样平飞或升高,通常称为翱翔。
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