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BNC: 40535 COCA: 33732

a gas with a strong smell that burns with a very hot, bright flame, used in cutting and joining metal乙炔,电石气

BNC: 40535 COCA: 33732
BNC: 40535 COCA: 33732
BNC: 40535 COCA: 33732
acetylene
Gases: acetylene, ammonia, argon...

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