1、
Coal-gas, obtained from the distillation of coal is mainly a mixture of hydrogen and methane.
煤经蒸馏以后所得到的煤气主要是氢气和甲烷的混合物.
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2、
Osmium isotopes in the natural isotopic mixture are separation by gas centrifuge technology.
对天然锇同位素进行了离心分离.
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3、
The oil removes the benzole a mixture of benzene, toluene and xylene from the gas stream.
油将除去气流中的粗苯(苯 、 甲苯、二甲苯的混合物).
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4、
Absorbed by solvent, butanone-toluene mixture was analyzed by gas chromatography ( GC ).
利用溶剂吸收采集丁酮甲苯混合组分,并用气相色谱 ( GC ) 测定.
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5、
天然气中甲烷碳同位素组成较轻，δ~（13）C1值为-52.03‰，分布在生物气与热解气的混合区内。
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