built-up propeller 组合推进器 ; 组合螺旋桨 ; 组合式螺旋浆
built up propeller 组合螺桨
propeller push up distance 安装螺桨压挤量
built up cast iron propeller 建造铸铁螺旋桨
built-up p propeller 组合推进器
propeller pull-up distance 螺旋桨推入量
It's like putting the top down on a convertible, only instead of folding up your roof, we're folding up our wings and we're transferring power from a propeller to the wheels for driving on the ground.
就像敞篷车把顶棚收起来，不同的是Transition是把机翼折叠起来，同时把动力从螺旋桨转到车轮，使其可以在地面行驶。
Megill and colleagues hope the bot can be used to study Marine life near the shore, where a propeller would kick up too much sediment or get tangled in weeds.
梅吉尔和他的同事希望能利用这种机器来研究海岸边的海洋生物，因为在这里，螺旋桨会激起较多沉积物，而且会跟水草缠绕在一起。
At the touch of a button it takes just 15 seconds for the wings to fold up automatically and the power to be re-routed from the propeller to the rear wheels.
只需按一个按钮，15秒钟的时间，翅膀就会自动地折叠起来，动力就会从螺旋桨推进器切换到后轮。
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