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煤气管道 méiqì guǎndào
met. gas conduit
tech. gas flue; gas pipe line; gas piping
煤气管道 【线】 méiqì guǎndào
met. gas conduit; gas pipeline; gas piping
煤气管道[线] méiqì guǎndào
el. gas pipeline
煤气 管道: 29 phrases in 3 subjects
Business1
Metallurgy10
Technology18