条件表达式

During the establishment of sediment yield dynamic model at the watershed outlet, it was difficult for us to carry out dynamic monitoring of each impact factors in the whole basin, because it was a long time research and was in very large-scale watershed. Taking into account the interannual variability of sediment yield mainly affected by hydrological conditions of rainfall - runoff and underlaying surface changes caused by soil conservation measures, a combined influence factor which is related to surface runoff modulus and the implementation time of the water and soil conservation project was proposed for the first time. Furthermore, its specific expression was determined through dimensional analysis and non-linear regression multianalysis.

在流域输沙量动态模型的建立中，由于研究时段长、研究流域尺度大，对输沙量各影响因子进行全流域逐年动态监测十分困难，考虑输沙量的年际变化主要受降雨-径流水文条件和水土保持措施等土地管理活动的影响，首次提出与地表径流模数和治理时间相关的综合影响因子，并通过因次分析法和二元非线型回归法确定了具体的表达式。

First, the grain will be increase at double speed, second, a large scale "structure" builds by collision and coalescence of favorably oriented particles (namely primary phase coalescence), third, primary phase entraps the eutectic structure.

分别研究了浇注温度、拉坯速度、冷却速度等工艺参数对合金组织的影响，结果显示：在本实验条件下，浇注温度以650荀70'℃为宜；拉坯速度以8.4一9.6 cm/min为宜；二次水冷流量控制在1.0一2.0比为宜。综合考虑磁场强度B和冷却速度对非树枝晶组织初生相平均尺寸D和形状因子S影响的数学表达式为：D=A一ns二；。

On the assumption that there is a resonance movement on the contacting surface, the damping force and dissipating energy in bolted joint are formulized.

在假定接触面出现简谐运动条件下，推导出接口阻尼力的解析表达式和接口能量耗散的关系式。

According to the new model and linear elastic fracture mechanics, an expression for CFCP rate, which revealed the quantitative correlation among CFCP rate, stress intensity factor amplitude, the CFCP threshold, the corrosion rate of the bare metal at the crack tip, loading frequency and the critical fracture stress of the hypothetical material elements along the crack path, was derived.

根据该模型和断裂力学原理，导出了CFCP速率的定量表达式，它揭示了CFCP速率与力学条件，裂尖表面腐蚀率、加载频率、假设的裂尖材料元临界断裂应力之间的定量关系，并能说明氢脆对CFCP率的影响规律。

Second, the internal force status, the mechanical computation model and the design method of the foundation beam with prestressed anchor cable have been analyzed.

针对现有滑坡推力计算方法单一、适用性差的特点，将常见的各种类型滑坡按滑动面形式分为5种类型，根据滑坡稳定分析中各极限平衡法的适用条件，分别给出了这5种滑动面形式的滑坡推力计算表达式。

Second, based on the spherical vector wave function in uniaxial anisotropic medium, and the first, second, third and fourth spherical Bessel functions satisfy the same differential equation and recursive formula. The scattering fields in terms of spherical vector wave function from a uniaxial anisotropic spherical shell and an anisotropic uniaxial-coated conducting sphere by a plane wave are derived. The electromagnetic fields in uniaxial anisotropic medium and free space can be expressed in terms of spherical vector wave functions in uniaxial anisotropic media and isotropic medium.

二、在建立均匀各向异性单轴介质球矢量波函数理论的基础上，利用二阶线性偏微分方程的性质和第一、第二、第三和第四类球Bessel函数满足相同的微分方程和递推关系，我们分别研究了单轴介质球壳和单轴介质涂覆导体球对平面波的电磁散射特性，首先给出了各个区域的电磁场用球矢量波函数来表示的解析表达式，进而利用电磁场在边界上满足电磁场切向连续的边界条件和球谐函数的正交性，得出了各向异性单轴介质球结构中电磁场用球矢量波函数表示的系数所满足的矩阵方程。

The spectral matching coefficients between two kinds of BV-EMCCDs and dark green paint, rough concrete, green vegetation under clear starlight and full moon were calculated and compared, according to the expression of spectral matching coefficient.

根据光谱匹配系数表达式，计算了2种背照明电子倍增CCD与暗绿色涂层、粗糙混凝土和绿色草木在晴朗星光和满月光条件下的光谱匹配系数并加以比较。

The main contents include the kinematic and dynamic characteristics of floating body and concept about large body; the kinematic and dynamic conditions and governing equations for constrained floating body; illumination of simple harmonic by decomposition into diffraction and radiation; introduction of relevant effect forces; the formula of velocity potential in waters with constant depth; the scattering by a vertical cylinder with circular cross section.

简述浮体的运动及动力特征、大尺度物体的概念；受约束浮体的运动学及动力学条件及其控制方程；通过分解为绕射和辐射问题讲解简谐运动及有关的作用力；等水深地形上速度势的表达式；铅垂圆柱产生的散射。

The expression of autotrophs growth kinetics indicates that autotrophs maximum growth rate can be determined by analyzing the varying trend of nitrate nitrogen concentration with time changing under conditions of lower initiative nitrate nitrogen concentration and autotrophs concentration.

自养细菌增长动力学表达式表明，在较低的起始硝态氮浓度和自养细菌浓度条件下，通过分析硝态氮浓度随时间的变化趋势，可以确定自养细菌最大增长速率。

Induced air flotation depurators are used extensively to remove oil from oil-water mixtures produced at oil fields.

基于吸入式气浮净化机工作机理的分析，提出了脱油动力学模型，得到关联油滴脱除率与操作条件的数学表达式。

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。