查询词典 parameter

Many investigations show that randomicity of structures'parameter will bring large value of stochastic dynamic response of structures. Randomicity of structures'mechanics parameter may be dominant factors. Therefore, introduction of randomicity into system model of structure and using random system model are more reasonable than that of determinate system model.

众多的研究工作表明，结构参数的随机变异性可以引起结构随机动力响应的大幅度涨落，结构力学参数的随机性还可能成为主导因素，在结构系统模型中引入随机性的概念，采用随机结构系统模型是较确定性结构系统模型更为合理的一种选择。

We can receive the result of interfere after importing the parameter. We can also detrude the parameter of trace and PCB when we regulate the settled coupling request.

也可以根据固定的对端接敏感器件的走线耦合要求或标准推导出相应的走线和PCB的物理结构参数，以此来指导设计。

Then, conversion formulae are given to acquire values of physical parameter partial differential from calculating parameter partial differential.

实例表明，所给出的插值算法及推导的转换公式是正确、可用的。

Lumped parameter systems are described by ordinary differential equations; while distributed parameter systems are described by partial differential equations.

传递函数的定义为系统在零初始条件下，其输出信号的拉氏变换与输入信号拉氏变换的比值。

We give out the formula of the ordinary solution of the second order linear homogeneous differential equations with the parameter"λ" and the two kinds of second order linear nonhomogeneous differential equations with the parameter"λ".

给出了含参数λ的二阶线性齐次微分方程及两类含参数λ的二阶线性非齐次微分方程的通解公式。

The boundary value problem for first-order differential equations with a parameter refers to the finite solution condition of equation which includes unknown quantity and its first-order derivative that not only relies on interval value but also relies on the parameter of the equation,which is always settled by fixed point theory or successive approximation method.

含一个参数的一阶微分方程边值问题是指：含有未知量及它的一阶导数的方程的定解条件不仅依赖于在区间端点的取值，而且依赖于方程中的参数。通常它用不动点定理或逐步逼近法来解决。

This paper introduced the main equipment and basic parameter of flash welder, narrated basic work principle of welder and its preparation process systematically, Meanwhile, analyzed how to control and adjust its parameter for differential specification, especially super-thin strip from BSP product line.

介绍了本钢冷轧厂闪光焊机的工作原理及基本焊接数据，详细的分析了针对不同规格产品焊机的工艺参数控制与调节，尤其针对冷轧厂超薄规格的BSP短流程的热轧来料，经过大量的焊接实验，从原料、设备、工艺等各个角度进行了全面系统的分析，给出了适合冷轧厂生产的完整焊接工艺参数，从而达到了优良焊接的目的。

To character the dilatant behavior of sand correctly,a function modifying the hardening parameter is introduced,and a state parameter involving the void ratio of phase transition is suggested.

本文在已有弹塑性模型基础上，对硬化参数进行修正，并引入与相变线相关的状态参量，建立了一个新的剪胀性砂土本构模型。

Thirdly, fuzzy control method and PID method were used respectively to design temperature self-adjustment controller of carbon fiber concrete laminate beam,by the MATLAB simulation it is found that the PID method has higher speed but is more sensitive to the fluctuation of system parameter ,it is suit to the regulating when the heat transfer coefficient fluctuates diminutively and the structure has little heat transfer with the environment;fuzzy control can be adapt to the parameter variety in a large scale , it is suit to the regulating when the heat transfer coefficient fluctuates greatly.

分别采用PID和模糊控制策略设计了温差自调节控制器，通过MATLAB仿真研究得出：PID方式具有更快的调节速度，但对系统参数变化较敏感，适合系统与外界对流交换较微弱，对流参数波动不大时的调节；模糊控制能够适应系统参数在较大范围内的变化，适合对流参数波动较大时的调节。

The position parameter of IFS code is replaced with the relative distance and direction parameter.

将分形码中的位置参数替换为相对距离与方向系数。

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。