1·The robotic samara spins about 15 times per second and can navigate through small areas and avoid obstacles, giving it advantages over larger vehicles such as helicopters and airplanes.
机器翅果旋转大概每秒15次，并可以导航通过小的地方并且避障，比大的机器如直升机或者飞机更加突出其优点。
2·For this reason, the samara has no stationary frame of reference, unlike a two-winged helicopter, and appears to fall in a complex way.
因此，翅果没有稳定的参考结构，不像双翼直升机，并且它在降落中呈现出复杂的方式。
3·In a new study, researchers have designed and built a mechanical samara whose dynamics are very similar to those of nature's samaras.
在新的研究中，研究者们设计并建造了一种机械翅果，它的动力与真正的翅果很像。
4·Since then, several other single-winged rotating aircraft have been developed, but none of these designs has used autorotation or been based on the samara.
自那以后，数种单翼旋转飞行器被发明，但没有一个设计使用了自旋或是基于翅果。
5·The wing of the vehicle is similar in size to a natural samara wing.
机器的翅膀从形状上与天然翅果的翅膀相似。