查询词典 exponential

The globe kinetics model can be described by an exponential equation, which was fitted very well with experiment data and the error was within 7%.

结果表明，当初始pH值为7.5、反应时间为120min时，质量浓度为25mg/L的表面活性剂十二烷基苯磺酸钠的去除率为97％，且DBS降解的反应动力学模型可用幂指数方程描述，该模型计算值与试验值吻合较好，误差在7％以内。

A new definition of L parameter for considering the three dimensional stress distribution caused by hoop stress and torsion shear stress is made and the L solutions of these structures under various multiple loads are developed in the form of the simultaneous equations and a single exponential function equation.

另外还给出了在三维应力状态下的含缺陷结构L参量的新定义，针对多载荷作用下的周向裂纹管提出了求解L参量的联立方程法、幂指数法。

There are many significant topics, including Huge Scale Parallel Broadcasting Technology, the Scale-free of Internet and WWW, the essential parameters of Internet in China in which network average distance, power law equation and exponential and so on, the structure of ACN and emulational experiments, the UCL technology in ACN.

主要研究了：大规模并播技术（尤其是基于数据广播的体制）；互联网与万维网的无尺度效应，尤其是我国的互联网络的平均距离、幂律方程及参数等我国互联网模型的基本参数；互补结构网络的结构形式及网络参数仿真实验；互补结构网络中的UCL技术。

To all fertilization treatments, the accumulation process of dry matter could be well fitted in the exponential equation y=aeb/x. Moreover, with fertilization amount rising, the a's value raised and b's remained stable.

不同施肥水平下的干物质积累过程均可以用指数方程y=aeb/x很好拟合，而且方程中的a值随施肥水平提高而增大，b值基本稳定。

More than 80％ of the root system was at this layer. The vertical distribution of root weight and root volume could be expressed by exponential equation, power equation or polynomial equation.

各品种水稻根系重量均随土层深度增加而下降，但主要分布在土壤耕作层（0-20cm），而表层（0-10cm）就占80％以上。

The results of dynamic absorption in the organs after incorporation of 3H-TdR showed that 3H-TdR in the peripheral blood was swiftly distributed to other organs and to their peaks in Id, and was scavenged from them quickly, the formulae of incorporation pattern were described as exponential equation.

3H-TdR内污染组织器官生物动力学的研究显示，进入血液的~3H-TdR可迅速分布于各组织器官，1天内吸收达高峰，然后迅速排除，拟合的滞留曲线回归方程为指数函数方程。

The descending trend has close correlation with the concentration range of extractable heavy metal in soil. The optimal estimation of accumulation factors resulted from the exponential equation was more precise than both the mean and the medium in the case of limited samples.

当数据量有限时，利用富集系数与对应可提取态重金属含量之间的回归模型对富集系数定量估值，其准确性要高于取相应的均值或中值。

The growth dynamics of leaf length on stem and tiller could be described with a logistic model, leaf width with conic equation, and leaf shape with exponential function and quadratic equation. The effects of nitrogen and water conditions on leaf growth were quantified by the effective values of leaf nitrogen concentration and water content.

模型采用Logistic方程描述了水稻主茎及分蘖叶片随生长度日的动态伸长过程；利用二次曲线描述了叶宽随GDD的动态变化过程；分别用幂函数和一元二次方程描述了叶形的动态变化过程；另外，以叶片氮素和水分因子分别描述了不同水氮水平对叶片形态建成过程的定量影响。

The accumulation factors of heavy metal in different kinds of leafy vegetables decreased with the increase of the extractable heavy metal concentration, which can be described best by the exponential equation y=ax(superscript b.

不同品种蔬菜对各重金属的富集系数随可提取态重金属含量增加呈幂函数形式递减，且递减趋势与土壤中可提取态重金属含量范围密切相关。

For inverse singularity, the parallel robot is divided into several series mechanisms, and the Jacobins matrix of these series mechanisms is solved by the exponential product equation and proved to be singular when the series mechanisms are singular.

对于逆奇异，将并联机构拆分成多个串联机构，由指数积方法求得其雅可比矩阵，并证明了机构逆奇异产生时的雅可比矩阵为奇异。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。