lean oil
... lean mixture || 稀薄混合气 lean oil || 贫油,解吸油,脱吸油(脱去轻馏分的油) lean ore || 贫矿石,低品位矿石 ...
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裂解气的油吸收分离 oil absorption separation of pyrolysis
裂解气油吸收分离 oil absorption separation of pyrolysis gas
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