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。
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。
Theoretically, any biomass material with moisture content of 5-30% can be gasified as the basic composition of carbon, hydrogen and oxygen is same.
从理论上说，任何水分5-30％，生物质含量可以作为碳，氢，氧的基本组成气化是相同的。
Taking endpoint temperature and endpoint carbon content as control target, oxygen-blown volume and added coolant were calculated, then endpoint control of convert steelmaking was realized.
同时，将炼钢的终点温度和终点碳含量作为控制目标，计算氧气的补吹量和冷却剂的补入量，实现转炉炼钢的终点控制。
The influence rule for primary wind temperature, second wind temperature, oxygen content and secondary air baffle opening to carbon-in-ash content were analyzed.
得到了一次风温、二次风温、含氧量和燃烬风层风箱开度的改变对飞灰含碳量的影响分析。
The influence rule for primary wind temperature, second wind temperature, oxygen content and secondary air baffle opening to carbon-in-ash content were analyzed.
得到了一次风温、二次风温、含氧量和燃烬风层风箱开度的改变对飞灰含碳量的影响分析。
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