fire triangle

基本解释

Heat, oxygen and fuel form the fire triangle .
热量、氧气和燃料是火的三要素。
Firefighters often talk about the fire triangle when they are trying to put out a blaze.
消防员在灭火时常常提到这三要素。
THE fire at the Triangle Shirtwaist factory on March 25th 1911 began just before the end of the working day; some of the workers had already put on their hats.
1911年3月25日，三角女式衬衫工厂发生火灾，当时还没到下班时间，有的工人已戴上帽子准备离开。

Seiko of Japan was shocked by the blocked doors, and lack of fire safety equipment in the Triangle Factory.

And this March 25th is the 100th anniversary of the horrific 1911 New York City Triangle Shirtwaist Factory fire (one of the all time worst U.S. industrial accidents, which took 146 lives).
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