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富氧 fù yǎng
met. oxygen enrichment; oxygen enrichment (This plan involved increasing production rate of No.2 blast furnace by natural gas injection, oxygen enrichment, stove improvements, etc. 这项计划包括通过天然气喷吹、富氧和热风炉改造等提高2号高炉的利用系数。)
tech. oxygen-enrichment
富 氧
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