特征参数

The research firstly focused on the effects of catalytic reductive dechlorination of the composite wastewater with chloroform and tetrachloromethane by zero-valent iron, optimizations of influencing factors on the dechlorinating process, and kinetics of chloroform dechlorination.

本文首先以配制的含氯仿和四氯化碳的废水为处理对象，研究了金属铁催化还原脱氯的效果，优化了处理工艺参数，简单分析了氯仿脱氯动力学特征。

The structure models of zirconium sulfate tetrahydrate and silica have been built. The binding morphology, charge distribution and energy change were also studied. It is deduced that the strong interactions between the active composition and support through hydrogen binding and dehydrate mode promise that zirconium sulfate tetrahydrate can disperse uniformly on the surface of support.

在对硅胶表面结构单元和四水硫酸锆单体空间模型结构参数进行优化的基础上，依据四水硫酸锆与硅胶载体表面的成键状态、电荷布居及能量变化，从理论上分析了四水硫酸锆与载体表面之间静电和脱水的相互作用的合理模型及硅胶负载型硫酸锆的结构稳定性，阐明了硫酸锆在载体表面的分散趋向于单分散的特征。

Mineralogic characteristics of quartz of this gold deposit, such as REE, fluid inclusion, chemical composition, unit cell parameter, infrared absorption spectrum and thermoluminescent effect, were studied systematically in this article,and some valuable information of genetic and prospecting criteria are concluded.

本文较系统地研究了该金矿床石英的稀土元素、包裹体测温、化学成分、晶胞参数、红外吸收光谱及热发光效应等矿物学特征，总结出了有重要参考价值的成因信息和找矿标志。认为康古尔金矿床主要系中深成中低温热液成因，成矿物质具深源性，直接来自围岩火山岩。

Values, the chemical composition of biotite of them and their petrochemical composition on the corresponding dia grams are all distributed transitionally between the "typi cal areas"; 2 that the micro-elements indicating genesis and the REE distribution parttens display the transitional change from the mines in North to those in South in this region; 3 that their K-Ar age of biotite is distinctively inconsistent with their Rb-Sr age of total rocks; and 4 that there occur several rock body groups with various genetic features which are formed at the corresponding time in the same Pb-Zn ore fields.

具体表现在全岩锶同位素初始比值、黑云母化学成分，岩石化学成分在相应图解上不集中而呈&过渡态&分布；微量元素成因特征及稀土分配型式在本区空间上呈&过渡态&展布；岩浆分异演化过程中各种地球化学演化参数不连续变化；全岩Rb-Sr同位素年龄与黑云母K-Ar年龄值严重不合；同一矿区，普遍发育不同岩性组合的岩体群等等。因此，地洼型多因复成成岩成矿作用在湘南铅锌矿床形成过程中是一个带有普遍性的区域成矿规律。

The two transpolar shortwave time signal circuits,Moscow and Irkutsk to the Great Wall Station in Antarctica, are used to study the fading characters for shortwave long circuit.

为了研究过极区的短波长电路的衰落特性，在南极长城站收测莫斯科、依尔库茨克的短波授时台信号，并给出各频率对应的衰落深度、衰落率、衰落平均持续时间等参数的统计特征和衰落幅度分布曲线。

Finally, a reliability model of military information system software based on unascertained set theory and Bayesian Net was proposed.

将未确知集理论和贝叶斯网络应用于军事信息系统软件可靠性建模研究，采用其描述软构件失效特征，计算可靠性参数，并在此基础上构建了一个基于未确知集—贝叶斯网络的军事信息系统软件可靠性模型。

Although the cardiac study could be traced back to the early of last century, the previous study generally concentrated on static analysis such as electrocardiograph figuration analysis and single parameter detection, which was unsatisfactorily with characterizing the various heart states precisely and overall.

过去的研究进展往往集中在心电图形态分析和单参数节律检测等静态分析上，难以较确切和较全面地反映心脏不同状态下的特征。

The interpretation of fracture and vuggy saturation,the determination of effective thickness and the distribution of reservoir are the main problems in reserve calculation.

缝洞型潜山油藏具有特殊的储集类型和特征，其饱和度参数解释、有效厚度划分、储层平面分布的确定是储量计算中的难题。

The fractured-vuggy reservoir of buried hill has special storage space and reservoir characteristics. The interpretation of fracture and vuggy saturation, the determination of effective thickness and the distribution of reservoir are the main problems in reserve calculation.

缝洞型潜山油藏具有特殊的储集类型和特征，其饱和度参数解释、有效厚度划分、储层平面分布的确定是储量计算中的难题。

On the basis of parameterization technology based on feature and assembly modeling technology based on Top Basic Skelton, a Top-down modeling method which combines skeleton model with dominant parts is put forward, and accomplished a product design with it.

本文研究了支持自顶向下设计的产品功能建模与装配模型，在基于特征的参数化技术以及基于顶层基本骨架的建模技术基础上，提出了骨架模型与主导零件相结合的自顶向下建模方法，完成了具体的产品设计。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。