It had a sleek metal case, a keyboard, a power supply, and cables.

它有一个造型优美的金属盒子，附带键盘、电源以及线缆。

With a power supply from the dam, Las Vegas soon exploded with vibrant displays.

拥有了来自水坝的电力供应后，色彩鲜艳的广告牌很快在拉斯维加斯涌现。

Class one, for long-range, these need a power supply and are mainly used for industrial purposes.

远距离，这需要一个功率供应器，这主要用于工业。

To hook up to, to connect a machine to a power supply, another machine or a Wi-Fi network.

连接，两个将机器连接到电源，另一台机器或 Wi-Fi 网络。