This paper introduces the structure, self-igniting point, mine-light a fine of energy of acetylene, the very dangerous flammable gas. And proposes the measures of safe use.
本文从乙炔的结构、 自燃点、最小点火能等方面介绍乙炔是特别危险的燃爆气体，并提出了安全使用措施。
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Two of them with 30m length lifeline and at least 5 of them have - self-ignting lights, among that 2 of them with self-ignitinglight and self-activity smoke signal, and 2 of them with life line.
A lifebuoy is provided with self-ignitinglightself-activating smoke signal which is available for use by day at night to be equally distributed on both sides of the ship.