Other researchers, in America and Japan, are also looking at using lasers rather than microwaves to transmit power through the atmosphere.

美国和日本的其它研究人员也在寻求利用微波以外的激光透过大气传输能量。

How is it possible to transmit so much power over such  a vast distance using just cables?

仅使用电缆怎么可能在如此远的距离上传输如此多的电力？

Each stage of converting and transmitting power results in a loss of efficiency, but with technological improvements these losses are being reduced.

在电力转换和传送的各个阶段都会伴随效率的损失，但是随着科技的进步这些效率的损失正逐步减少。

The extra-large tires are gentle on the ground, transmit the entire engine's power to the ground, and improve operator comfort.

超大轮胎对地面轻柔，将整个发动机的动力传递到地面，提高操作者的舒适度。

He had the idea of building a global wireless power network, and he was going to transmit power to go around the world.

他萌生了建设全球无线电力网络的想法，他要将电力传输到世界各地。

That could happen about five years from now, perhaps using a laser on the International Space Station to transmit solar power collected by its panels to Earth.

从现在算起，实验可能会在未来的五年内进行，可能采用的方法是利用国际空间站的激光将太阳板收集到的太阳能传送到地球。

And China is building literally scores of high-voltage power linesthat transmit power from where the sun and wind areto the coasts, where the energy demand is.

中国正在建造大量高压输电线，将电力从太阳能和风能所在的地方传输到能源需求所在的海岸。

A telephone wire, however, loses much of its transmitting power when placed under ground, and it took many years of experimenting before the engineers perfected these subways.

然而，电话线在地下时会损失大部分传输功率， 工程师们经过多年的试验才完善了这些地铁。