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混合氣體CH4:150ppm+C2H6:150ppm+C3H8:3000 ppm+Iso-butane:20ppm+C4H10:20ppm+C2H4 :20ppm+C3H4:20ppm+C2H2:20ppm+Trans-2-but ene:20ppm+1-butene:20ppm+ etc. 6LT/CA
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