求翻译：1952年伦敦烟雾事件是1952年12月5日－9日发生在伦敦的一次严重大气污染事件。这次事件造成多达12000人因为空气污染而丧生，并推动了英国环境保护立法的进程。 事件。这次事件造成多达12000人因为空气污染而丧生，并推动了英国环境保护立法的进程。是什么意思？

1952 London smog event is December 5, 1952 -9 in London a serious air pollution incidents. The incident caused as many as 12,000 people died because of air pollution, environmental protection and promote the British legislative process. The event. The incident caused as many as 12,000 people died be

1952 London smoke incident is December 5, 1952 took place in London on 9 - a serious air pollution incidents. The incident caused as many as 12,000 people lost their lives because of air pollution, and to promote the process of British environmental protection legislation. Events. The incident cause

In 1952 the London smog event was on 1952 December 5 - 9th occurs in a London's serious air pollution event.This event creates reaches 12000 people to get killed much because of the air pollution, and impelled the England environmental protection legislation advancement. Event.This event creates rea

1952 London smog events occur is December 5, 1952 in the event of a severe air pollution in London. This incident caused as many as 12,000 people lost their lives because of air pollution, and promoting the United Kingdom process of environmental protection legislation. Event. This incident caused a

London smog event was taking place in 1952 in a serious atmospheric contamination accident of London. This event causes and reaches 12000 people to die because of air pollution, and promoted the process that Britain's environmental protection legislates. Event. This event causes and reaches 12000 pe