他补充道，当你坐在飞机上时，这些未被利用的空间就在你的头顶。

"When you lie on the floor of an aircraft, you notice a lot of unused space above you," he says. "Even when you're sitting in a plane, there's all this unused empty space above you."

youdao

未被利用的阳光和电池本身的低效率产生的热量导致一半以上的抵达到电池的原始太阳能损失掉了。

This heat from unused sunlight and inefficiencies in the cells themselves account for a loss of more than 50 percent of the initial solar energy reaching the cell.

youdao

该方案是建筑师最新提出的一系列计划，用来激活高架路、铁路轨道和其他交通线路下方的未被利用的空间。

The schemes are the latest in a series of plans by architects to activate under-utilised spaces beneath elevated roads, rail tracks and other transportation lines.

youdao