Acetylene (ethyne) Simplest alkyne, C2H2. A colourless, flammable, explosive gas, it is used as a fuel in welding and cutting metals and as a raw material for many organic compounds and plastics.
乙炔：最简单的炔(C2H2)，无色可燃气体，广泛用作金属焰焊接和切割的燃料，也是合成许多有机化学品和塑料的原料。
Applied with flammable, explosive mixtures workshops, warehouses and other places of material handling, loading and unloading work.
适用于具有易燃、易爆混合物的车间、仓库等场所的物料搬运、装卸工作。
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