查询词典 carbon

A three-dimensional world ocean carbon cycle model with ocean biota pump is developed. In the model, the atmosphere is represented by a well-mixed box of CO 2 , where CO 2 is exchanged with CO 2 from the surface water. The carbon cycle model has been numerically integrated for 1 200 years to a quasi-equilibruium state.

建立了一个带生物泵的三维全球海洋碳循环模式，该模式在海气界面上与一个CO2 充分混合的大气箱进行CO2 交换，模式积分 1 2 0 0年达到准稳定态的海水总CO2 、碱度及溶解氧的浓度、表层新生产力、海气分压差等的分布与实测相接近。

By means of FDTD method, the model of computing the radiation of carbon nanotubes/polyethylene wax-coated mobile phone to human body is established. The influences of carbon nanotubes on mobile phone radiation deduction and communication performance are analyzed.

采用FDTD数值模拟方法，建立了涂敷有碳纳米管／聚乙烯蜡吸波材料的手机辐射对人体影响的计算模型，分析了碳纳米管材料对降低手机辐射剂量功率比吸收率SAR值及手机通信性能的影响。

The conductivity of the treated carbon black gradually increases by sequence of heat treatment、 KOH treatment、 vapor treatment、 CO_2 treatment at high temperature. The conductivity of the carbon black treated by CO_2 is one time more than that of the untreated.

高温改性炭黑的导电性依热处理和KOH处理、高温水蒸气处理、高温CO_2处理而逐步增大，其中CO_2处理的炭黑比未处理炭黑的导电能力高出一倍以上。

Valve housing and components used, such as the United States and build the Association ASTM standards, has monel, titanium, zirconium material, tantalum material Hastelloy, ultra-low carbon, alloy steel, stainless steel, carbon steel, etc..

阀门壳体及零部件采用美材协ASTM等标准，有蒙乃尔、钛合金、锆材、钽材哈氏合金、超低碳、合金钢、不锈钢、碳钢等。

We analyzed and discussed the characteristics of cycle of carbon and water,and after having obtained important physiological parameters based on field experiment,a process-based, multilayer two-leaf model which calculates energy and material cycle separately for sunlit and shaded leaves was developed,then characteristic of CO_2 fluxes above the canopy was simulated.The main results are as follows:1.Characteristics of carbon and water cycle in the relationship of leaf photosynthesis -stomatal conductance-transpiration.

本研究以冬小麦为研究对象，利用LI-6400R光合—蒸腾测量系统、LI-6400-09土壤呼吸室和禹城生态试验站涡度相关系统等高精度仪器设备，对2007年和2008年小麦拔节至乳熟期间涉及碳、水循环过程的叶片光合—蒸腾作用、土壤呼吸作用及相关农田气象要素和植被特征进行了野外试验测定和分析，在试验观测基础上提取了重要生理参数，建立了基于过程的农田与大气间物质输送和能量交换的多层—双叶模型，并对2008年试验期间冠层上方碳通量特征进行了模拟，试验分析和模拟的主要结论如下：1。

It proves that tree top leaves suffer from water stress and hydraulic limitation becomes greater with tree height.Water stress influence tree height growth in several aspects:firstly is the influence of exterior water condition,and community average tree height is positive with exterior water condition.Secondly, hydraulic limitation influences individual tree structure and function.Xeromorphic structure,Lower water potential and turgor pressure limit cell division and expansion,which restrict gas exchange and carbon assimilation capability.However,respiration consumption increases with the spread of tree crown.Shortage of nutrient limits carbon investigation on new leave growth and may ultimately limit tree growth.Thus,the main limitation of tree height is water.

水分对树高生长的限制首先是外在的水分状况，群落的总体高度随外界水分状况的变差而变矮；再就是水力限制对单株树木的结构和功能的影响，水势降低、膨压减小使细胞的分裂和扩展受限，旱生型结构加剧水力对气体交换能力的限制、使光合碳同化能力受到限制、而呼吸消耗却随着树木个体的增大而增大，制造营养物质不足、使得营养亏缺、造成投入新枝叶的营养受限，最终限制了树高继续增长。

The temperature range of phase transformation from γ-Fe to α-Fe is 300-550℃: the activity of carbon atoms in solid solution of α-Fe would be increased with increasing the annealed temperature, and the diffusion of carbon atoms results in analogue state of different Fe configurations.

Fe相向α-Fe相转变的温度范围为300-550℃；α-Fe固溶体中的C原子的活度随退火温度的提高而提高，C原子的扩散导致不同的Fe原子组态趋于一致。

When surface of TiO2 powder is enveloped by carbon, the reduction is mainly solid-solid reaction between carbon and titanic oxide.

结果表明钛氧化物的还原是逐级进行的，反应过程伴随着相变，当TiO2粉末和C粉末均匀混合时还原碳化反应主要依赖于CO／CO2传质的气固反应，当TiO2颗粒表面被C包膜时主要是碳和钛氧化物之间的固固反应，当TiO2粉末和C粉末混合压球时则两种反应机理均有。

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本公司是一间专业生产汽车用行李架、车顶行李箱、车顶射灯架、玻璃钢纤维、碳纤维、ABS塑料、铝合金定风翼、定风翼刹车灯、备胎架、脚踏板、皮卡车用龙门架、皮卡车用行李箱及PVC皮革、PU环保皮、无纺布、塑料、不锈钢（304#）不锈铁（430#）、玻璃钢纤维、碳纤维等材质备胎罩、汽车扶手箱、汽车用不锈钢铁铲系列产品的专业生产厂家、本公司还有许多产品现正开发中、欢迎世界各地客商来样进行生产、务求做到平、靓、正的原则与世界各地客商达至互惠互利的长期合作伙伴关系。

Based on a large amount of data on carbon analysis of consecutive cuts of the specimens carburized with workpieces, and combined with the tracking test result on the furnace atmosphere, the components and the carbon potential control of carburizing atmosphere in the sealed box furnace were analyzed and studied.

根据大量随炉渗碳试样的剥层定碳分析数据，结合对炉气氛的跟踪试验结果，对密封箱式炉渗碳气氛的组分和碳势控制进行了分析研究。

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。