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。

For this reason, the samara has no stationary frame of reference, unlike a two-winged helicopter, and appears to fall in a complex way.

youdao

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。

For this reason, the samara has no stationary frame of reference, unlike a two-winged helicopter, and appears to fall in a complex way.

youdao