Studies the influence of mask on lag time, and introduces the optimize method of the usage of point fire detector based on the character of environment.

通过实验研究了防虫网对报警迟滞时间的影响程度，提出了根据环境合理选择点型感烟探测器的方法。

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Nowadays, point-type fire detectors are widely used in civil buildings and the lag time is a parameter which reflects the response of the point fire detector to environmental change.

点式感烟探测器是目前民用建筑中最为广泛使用的火灾探测设备，其中离子感烟探测器是一典型的点式感烟探测器，迟滞时间是反映点式感烟探测器对环境变化跟随性的指标。

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It is a point of fire that exists within us, which is immortal and infinite, which nothing can confine, and which nothing can extinguish.

爱是人们心里的一个火源，它是无尽期、无止境的，任何东西所不能局限，任何东西所不能熄灭的。

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On Tuesday,leading business newspaper Kommersant estimated that the fire damages will total $15 billion trimming one percentage point off an already feeble economic recovery.

VOA: standard.2010.08.10

and ideally at some point coal, coal-fire power plants.

理想情况下，在某个时间点可能还会关闭煤炭以及燃煤电厂。

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Worse, subway tunnels were flooded and dozens of houses in Breezy Point were on fire.

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Public health advocates maintain that the health risks from exposure to chemical flame retardants is higher than that of fire, and point out that the chemicals are often used on products that pose little fire risk.

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So at this point they just seem to be burning, if not out of control at this point, it looks like a fire maybe sort of 10 feet wide at this point on the second floor.

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