1961年Frank Drake提出了其用于估计银河系中有能力与我们通信的智慧文明数目的著名方程序。

In 1961 Frank Drake proposed his famous equation for estimating the number of intelligent civilisations capable of communicating with us in our own galaxy.

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英国的电子情报中心GCHQ(通信总部)估计，英国每年因网络诈骗损失10亿英镑，上个月，该机构设立了专责部门应对日益增长的威胁。

In Britain last month the GCHQ, the government's electronic spy centre, which estimates that the UK loses GBP 1bn a year to e-fraud, set up operations to deal with the growing threats.

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以欧洲移动通信运营巨头Vodafone为例，估计网络产生的排放占其总碳排放量的80%(其余的则来自与办公场所、营业场所和交通)。

For example, Vodafone, a giant European mobile operator, estimates that its network accounts for 80% of its carbon footprint (the remainder is attributed to its offices, shops and vehicles).

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