We had to brake the first one by a few hundred kilometers per hour, and actually, the duration of that was seven hours, and it used 218 kilos of fuel, and those were seven nerve-wracking hours, because in 2007, there was a leak in the system of the propulsion of Rosetta, and we had to close off a branch, so the system was actually operating at a pressure which it was never designed or qualified for.
我们的第一次减速需要 将速度每小时降低数百公里， 事实上这个过程花了7个小时， 消耗了218公斤的燃料， 这也是令人心惊胆战的7小时， 因为在2007年， 罗塞塔号的推进系统出现了一处泄漏， 我们不得不关掉了一个分路， 因此推进系统是在超出设计能力的 压力下运行的。