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冶炼时间
met.	length of heat; heat time; tap-to-tap time (Use of post-combustion can save up to 5.8 kWh in power consumption and 30 seconds in tap-to-tap time per Nm³ of oxygen. 采用二次燃烧时,吹人每 Nm³ 氧气可节电达5.8 kWh, 减少出钢周期 30s。)
tech.	duration of heating; duration of heat
冶吹炼时间
met.	heat time
冶炼一炉时间
met.	duration of heat

冶炼时间: 6 phrases in 2 subjects

Metallurgy	5
Technology	1