One problem: the arm and hand have no sense of touch.

有一个问题是：现在的仿生胳膊和手没有触觉。

youdao

Vibrato, a shaking of the arm and hand adds a lot of work to your playing.

颤音，振动的胳膊和手作为一个很多温暖你的演奏。

youdao

One problem: the arm and hand have no sense of touch. But everything else seems to be working fine.

有一个的问题是：机械手臂和手是没有感觉的，但是它们工作的很好。

youdao

Thomas describes a skillful overhand throw as an uncoiling in three phases: step (with the foot opposite the throwing hand), rotate (with hips first, then shoulders) and whip (with the arm and hand).

FORBES: Why Your Daughter Throws Like a Girl

Sollers has his arms crossed, the left arm resting on the surface of the table, the right arm resting on the left (and his right hand indolently cupping the elbow of his left arm).

NEWYORKER: Labyrinth

Such second-hand signals are not as precise as ones collected directly from the brain itself, and probably could not control the complex movements required of an arm and a hand.

ECONOMIST: Bionics (I)