图中火灾次数以渐变颜色表示，由绿色(低)至红色(高)。

The number of fires is presented in graduated colour, from green (lowest) to red (highest).

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在危害森林的诸因子中火灾是一种最具破坏性的灾害，各林业先进国家都非常重视林火研究工作。

Forest fire is one of the most destructive disasters. All the advanced countries have been paying much attention on forest fire research.

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该系统由集中火灾报警器及区域火灾报警器组成，具有结构简单，工作可靠，功能完善，造价低廉，实用等特点。

The system consists of concentrating fire alarm device and regional fire alarm device. It is characterized as simply structure, working reliable, function powerful, price cheap and practical.

youdao

Can you describe the biggest fire you remember?

你能描述一下你记忆中最大的一场火灾吗？

退休的消防员叔叔 - SpeakingMax英语口语达人

And there was 37 people died in there.

7个人在火灾中丧生。

退休的消防员叔叔 - SpeakingMax英语口语达人