因为它们的两副翅膀叠在一起，在空气动力学的理论中，这意味着它们对自己身体缺乏控制力。

Because their two sets of wings effectively flap as one, that in theory gives them little control over the aerodynamic forces on their body.

youdao

在这个特殊时期，我们面对的是一副这样的景象——海湾内的石油喷井无法控制下来，石油不停的流向海岸。

And, at this particular moment, we are confronted by the picture of an uncontrolled gusher of oil spewing destruction into the gulf.

youdao

他们还测量了控制心率节律的交感神经与副交感神经平衡的——心率自主调节(CAM)。

They also measured cardiac autonomic modulation (CAM), the balance of the sympathetic and the parasympathetic control of the heart rate rhythm.

youdao