a colorless flammable gas used chiefly in welding and in organic synthesis
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用作名詞(n.)
The condition of microamount alkyne determined is studied by spectrophotometry was studied and the content of alkyne in semi water gas was measured.The results are satisfatory. 本文研究了利用分光光度法測定炔烴條件，并實測了半水煤氣中炔烴，結果令人滿意。
The condition of microamount alkyne determined is studied by spectrophotometry was studied and the content of alkyne in semi water gas was measured.The results are satisfatory. 本文研究了利用分光光度法測定炔烴條件，并實測了半水煤氣中炔烴，結果令人滿意。