04154340-n
|
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a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole |
04154152-n
|
| 螺丝钉, 螺旋 推进器, 螺旋推进器, 螺旋, 螺杆, 螺孔, 螺旋桨 |
| screw, screw propeller |
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a propeller with several angled blades that rotates to push against water or air |
02692086-n
|
| 空气 螺旋桨, 推进器, 空气螺旋桨, 螺旋桨 |
| airplane propeller, airscrew, prop |
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a propeller that rotates to push against air |
04011827-n
(1)
|
| 推进器, 螺旋桨 |
| propeller, propellor |
| |
a mechanical device that rotates to push against air or water |