The effects on RH decarburization of several parameters including lift gas flow rate, vacuum pressure reduction curves, KTB starting time and initial carbon and oxygen content are investigated.
考察了提升气体流量、真空度压降模式、KTB吹氧时机以及初始碳氧含量对RH脱碳的影响。
Surface soil samples were collected in the deserts and Gobi regions of China. The carbonate content and carbon and oxygen isotopic composition were analyzed.
在中国的主要沙漠和戈壁等粉尘源区采集了地表沙或土壤（统称为表土）样品，分析了样品的碳酸盐含量和碳酸盐的碳氧同位素组成。
The present paper introduces the process route of superior quality structural carbon steel SAE1008. Control oxygen and inclusion content in steel, is the key of product quality guarantee.
本文介绍了优质碳素结构钢sae1008的生产工艺。指出控制钢水中全氧含量和夹杂物含量，是生产顺行和产品质量保证的关键。
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