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迎面火是指对任何森林火，在火头前适当地方人工点烧一条火线，两火相撞后使林火熄灭。而如何选择点火地点则是非常难掌握的一项技术，本文对适合北方林区点烧迎面火的距离问题做了探讨。１ 点火原理 由于迎面火向野火烧来的过程中，已将火头前的可燃物烧净，因无可燃物可烧，
Oncoming fire refers to any forest fire, artificial fire in a suitable place in front of the fire a fire line, the fire after the fire extinguished. How to choose the ignition point is a very difficult technique to master. This article discusses the suitable distance between the northern part of the forest and the oncoming fire. Ignition principle As the head to the wildfire burned to the process, the burning of the combustible material before the fire head, because there is no combustible material can be burned,