Doubling the frequency of logical operations inside a microprocessor doubles the heat output.
微处理器内部逻辑操作的频率加倍，产生的热量也加倍。
2
In the US, studies have shown that doubling the size of a road can simply double the traffic, taking us back to the starting point.
研究表明，在美国，将道路的规模扩大一倍，只会使交通量增加一倍，这样我们又回到了事情的起点。
3
Losing a job is hurting: you don't skip down to the job centre with a song in your heart, delighted at the prospect of doubling your income from the generous state.