指数曲线

The precipitation efficacity showed multi-index curve relationship with the soil water content and precipitation in the base period and the evaporation efficacity showed index curve relationship with the soil water content in the base period.

降水效力与基期土壤含水量、降水量呈多元指数曲线关系，蒸发效力与基期土壤含水量呈指数曲线关系。

Although chargingoccurs at an exponential rate, the very beginning of the exponential curve approximates a straight line.

虽然充电是以指数率进行的，但该指数曲线的最开头那一部分接近于一根直线。

The slightest exponential curve from a big trend would eventually surpass the steepest linear curve they saw while losing.

大趋势的指数曲线最终会超过亏损时最陡峭的线性曲线。

Results There was a linear trend between logarithmic X and Y, the equation of logarithmic curve was able to be fitted, There was a linear trend between logarithmic Y and X, the equation of exponential curve was able to be fitted, There was a linear trend between logarithmic X and logarithmic Y, the equation of power curve can be fitted. There is a parabola pattern between X and Y, the equation of parabola was able to be fitted.

结果 X取自然对数与Y作散点图有直线趋势，拟合对数曲线方程；Y取自然对数与X作散点图有直线趋势，拟合指数曲线方程；X取自然对数与Y取自然对数作散点图有直线趋势，拟合幂函数曲线方程；原始数据X和Y成抛物线关系，拟合抛物线方程。

Nonlinear regression analysis was performed to assess the allometric relation of FFM with body height.

根据FFM是身高的异速生长指数的模型关系，进行非线性回归，建立指数曲线回归方程。

There were only 94 vascular plant species, belonging to 50 family and 75 genera. The dominant species in the communities were deciduous broadleaf species Liquidambar formosana, Robinia pseudoacacia, Ailanthus altissima, Acer buergerianum, and Celtis sinensis, evergreen broadleaf species Cinnamomum camphora and Elaeocarpus glabripetalus, and Phyllostachys heterocycla. Robinia pseudoacacia+Cinnamomum camphora community had the highest Shannon-Wiener index (1757) and Phyllostachys heterocycla+Acer buergerianum community had the highest Simpson index (0163), but no consistency was observed between the curves of H and D. For vertical structure, most communities had no significant understory stratification.

结果表明：辰山植物区系以泛热带和北温带占优势，具有典型亚热带和温带成分交汇和南北植物分布交错特征；但保育区内种类单一，维管束植物仅有49科69属94种；主要群落是以枫香、刺槐、臭椿、三角枫和朴树等为优势树种的落叶阔叶林，以香樟和秃瓣杜英等为优势树种的常绿阔叶林，以及毛竹林；物种多样性普遍较低，Shannon-Wiener多样性指数最高为刺槐+香樟群落（1.757），Simpson均匀度指数最高值为毛竹+三角枫群落（0.163）；多样性指数曲线和均匀度指数曲线不具有一致性的变化趋势；多数群落垂直结构中无明显林下分层现象；演替前期的落叶乔木种群后续个体不足。

Drying experiment of pelleted corn seed was conducted through three factor and three level orthogonal experimental design, its drying characteristic curve was obtained as an index curve, and the effects of various experimental factors on drying property were analyzed....

采用正交试验的方法，对玉米丸粒化种子进行了 3因素 3水平的干燥试验，得出其干燥曲线为指数曲线，并分析各试验因素对干燥特性的影响。

1The soil water c haracteristic curves of four soil layers in this soil were consistent. The satur ated water content, field capacity, wilting coefficient and available water capa city decreased from top soil to bottom in soil profile.(2)The unsaturated hydra ulic conductivity was significant relation with the negative pressure head in ex ponential function and tended to stable when the negative...

土壤的饱和含水量、田间持水量、凋萎系数和土壤有效水的含量均从土壤上层到下层呈降低的趋势；土壤的非饱和导水率与负压水头之间呈负相关的指数曲线变化，当负压水头达到 10 k Pa时，非饱和导水率降低到最小值，且基本趋于稳定；非饱和土壤水扩散率变化于 1.1× 10 - 3～ 1.886× 10 - 3cm2 / min之间，非饱和土壤水扩散率随含水量也呈指数曲线变化。

Considering the skin effect and skin depth, a thin wall model and a thick wall model are derived creatively with different frequencies of discharge currents, which are used to study the relation between the spark location and the potential difference for a cuboid electrode.

本文从放电电流为任意函数入手，阐述了电极电位差法的检测原理，首次利用傅立叶级数推导了电位差与放电时间的关系，证明了放电电流为阶跃函数时，电位差与放电时间成指数关系；当放电电流中含有高频振荡时，电位差与放电时间的关系为指数曲线上叠加相移后的高频振荡；根据放电电流频率的不同，考虑到趋肤效应和趋肤深度，首创了薄壁模型和厚壁模型，研究了长方体电极下表面二维放电点位置与电位差的关系。

The simple beam is simulated numerically, and its modal displacements of different damage conditions are analyzed by Mexican wavelet transform, and we can get the maximum coefficient modulus of 1-6 scale, from the logarithm of which Lipschitz exponent curve is obtained, and we can find that different extent of the damage match with different Lipschitz exponent.

通过对简支梁进行数值模拟分析，对其不同损伤的模态位移进行Mexican小波变换，提出其1-6尺度的小波变换系数模极大值，通过其对数曲线我们可以得到其Lipschitz指数曲线，从中我们可以看出不同损伤程度对应了不同Lipschitz指数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。