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1·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.

失去一份工作是痛苦的：你不会在心里哼着歌蹦蹦跳跳地去就业中心，为你能从这个慷慨的国家获得双倍收入而高兴。

4·Meat output 'doubling'.

肉类产量的“加倍”。

5·His firm's revenues are doubling yearly.

现在他公司的收入每年都几乎翻一番。

6·Giff leaves, not doubling back this time.

吉夫掉头走了，这次没再回来。

7·When we came in we saw her doubling up on the sofa.

我们进来时看见她蜷缩在沙发上。

8·Sales integration: the secret to doubling your sales.

销售一体化：销售翻倍的秘诀。

9·More meat eaters will require doubling of world livestock

食肉者增多，世界家畜需求量翻番

10·The energy efficiency of computing is doubling every 18 months.

计算机的能源效率(晶体管数目)每18个月翻一番。

(1)chromosome doubling染色体加倍；染色体复制；染色体配对

(1)frequency doubling倍频

(1)doubling time倍增时间；重复时间