A-power supply的意思|示意

You can't make a machine work without power supply.

没有动力，机器就不能转动。

They may have a home to shelter themselves, but it does not have power supply, a telephone or plumbing.

他们可能会有栖身之所，但里面没有电，没有电话，也没有水暖设备。

Before we could replace the power supply, we would have to remove from the telescope a handrail fixed with four screws.

在更换电源之前，我们必须从望远镜上取下一个用四个螺丝固定的扶手。

Now a dead tube could be connected directly to a power supply by using a specially designed generator.

现在一个已没电的灯管，可以用一个特制的发电器，来直接连结供电器。

Each turbine will be mounted on a tower which will connect to the national power supply grid via underwater cables.

每个涡轮机将被安装在一个塔上，塔将通过水下电缆连接到国家电网。

So, this is what goes on in an electrolysis cell, and it works thanks to input energy from a power supply shown here.

所以，这是在一个电化学电池中发生的，它是靠输入的能量工作的，从和这个类似的电源输出的能量。