碳

Carbon Fixation- Ribulose 1,5-Bisphosphate Carboxylase All plants and algae remove CO2 from the environment and reduce it to carbohydrate by the Calvin cycle.

碳固定——核酮糖-1，5-二磷酸羧化酶所有的植物和藻类吸收环境中的 CO2，通过卡尔文循环将其还原为碳水化合物。

Reducing afterblowing and using the carburant with low nitrogen content are important measure. The kinetics of nitrogen removal from liquid steel under vacuum with reaction between carbon and oxygen was studied on the multi-function induction furnace. The following conclusions were obtained by experiments: The nitrogen removal was obtained by the nitrogen transfer through the liquid steel diffusion layer at 67Pa and 110Pa pressure, and by the gas-liquid surface chemical reaction at 2000P.

结果表明：真空度对脱氮机理有影响，67Pa～110Pa时脱氮为一级反应，2000Pa时脱氮为二级反应，1340Pa时为混合控制；即使在。1％的条件下，碳氧反应亦可显著提高脱氮速度常数促进深脱氮，在RH内通过加强碳氧反应来提高脱氮率理论上是可行的；当钢液内存在内生或外来固态粒子时，有利于钢液中CO及N〓气泡的形成及排除，这时气泡内p〓≈0，有可能使钢液中氮含量低干与系统真空度平衡的氮含量。

The mathematical model of gas carburization is mathematical description of all kinds of physical and chemical phenomena in the process of carburization.

气体渗碳数学模型是渗碳过程中各种物理、化学现象的数学描述。

The extent of such carburization and carbon deposition enhanced with reduction temperature, leading to a maximum in the catalytic performance.

这种碳化并伴随积碳的程度随着还原温度的升高而增强，导致催化剂的性能呈现先增后减的趋势。

An analysis of the effect of the scales on the process of gas carburization is made and the probability of adding some coke to the furnace to decrease more quickly t...

同时对氧化皮影响气体渗碳进行了计算与分析，提出了在炉子中加入焦碳有可能使炉中的CO_2％较快地降低到正常的CO_2％量。

An analysis of the effect of the scales on the process of gas carburization is made and the probability of adding some coke to the furnace to decrease more quickly the per...

同时对氧化皮影响气体渗碳进行了计算与分析，提出了在炉子中加入焦碳有可能使炉中的CO_2％较快地降低到正常的CO_2％量。

Through the analysis of crystal structure and phase compositions, it was concluded that the precursor carburization and substrate temperature are the most important parameters to get nanostructure tungsten carbide thin films.

通过分析影响薄膜的晶体结构、化学组成的因素后，认为要得到具有纳米晶结构的碳化钨薄膜，主要应控制前驱体气体中的碳钨比以及基底温度。

Based on this result, and combined with mathematical models for describing the quenching process, the temperature, microstructure and stress field in quenching process were simulated by the FDM, the variation of microstructure and stress in quenching process was analyzed, and effect of the carburization on them was also analyzed.

基于渗碳模拟结果，根据描述淬火过程的数学模型，利用有限元法对试样淬火过程的温度场、组织场及应力场进行了数值模拟，分析了淬火过程中组织和内应力变化，及渗碳过程对淬火过程组织及应力变化的影响。

The tungsten heavy alloys were treated by solid surface carburization method and examined by microscope,SEM and X-ray,etc.

采用固体渗碳的方法对高密度钨合金进行了表面渗碳处理，通过显微观测、能谱分析、X射线检测等分析手段对渗层进行了检测。

The causes and mechanism of both carburization and dusting, and carburization kinetics were discussed by means of Grabke Model.

采用扫描电镜、X射线衍射、差示热分析等方法对Ni Cr/BN混合粉末在1250℃烧结时发生的碳化和粉化行为进行了分析，借用Grabke的模型探讨了这种现象产生的原因和机理，并进行了碳化动力学的讨论，提出了预防产生这种现象的措施。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。