This allows the connection to be made without a wrench, using a nut equipped with a hand wheel.

这使得不用扳手，而是使用带手轮的螺母就可以进行连接。

youdao

This allows the connection to be made without a wrench, using a nut equipped with a hand wheel.

这使得不用扳手，而是使用带手轮的螺母就可以进行连接。

youdao