薄板

Methods In the first place,the mathematical model of the dynamical response of viscoelastic thin plates is established in physical space,then the fundamental equation in Laplace domain is obtained by using Laplace transformation.

首先在物理空间建立了粘弹性薄板动力响应问题的数学模型，然后利用拉普拉斯变换得到拉氏变换域的基本方程；利用基本方程的基本解，由边界元方法得到边界积分方程，并求得数值解；最后通过数值 Laplace 逆变换得到原问题的解。

This paper introduces the four-probe method of measuring the conductivity of metal thin board using mirror galvanometer as measuring tool.

介绍了用镜式检流计测量金属薄板电导率的四探针测量方法。

New multi—objectives function (including mill stand longitudinal stiffness, distribution coefficient of loaded pressure between rolls, weight of mill stand, rolling power, rolls loaded gap profile changeability of bending force, transverse mill stand stiffness of bending force, transverse mill stand stiffness of rolling load) multi—constraints (including rolls strength, spindle strength, backup roll bearing load, minimum rollable gauge, roll surface temperature rise) rolls system parameters optimization model of four—high cold strip mill is established, and programme for mill structural illustration creation on the platform of AutoCad designs is compiled. With this as basis, rolls system parameters of Yichang thin strip corporation's 1219 cold mill are calculated using SUMT (subsequent unconstrained minimization technology).

本文建立了以板形和板凸度控制特性为目标的四辊轧机多目标函数（包括轧机纵向刚度、辊间压力分布系数、轧机重量、功率、弯辊力对轧机辊缝形状改变能力、对弯辊力的横向刚度、对轧制力的横向刚度）、多约束条件（包括轧辊强度、接轴强度、支承辊轴承负荷、最小可轧厚度、轧辊温升等）的辊系参数优化模型，以此模型为基础，利用惩罚函数法计算了益昌薄板公司1219冷轧机辊系参数，编制了AutoCAD平台下的轧机结构示意图自动图形软件。

Since the number of generalized coordinates is large when using the finite elemen

因为用有限元离散时，柔性薄板的广义坐标规模较大，故仿真计算需要时间较长，所以模态截断法被用来缩减广义坐标数量，提高计算效率。

Since the number of generalized coordinates is large when using the finite element method, MTA is usually used for improving computational efficiency and only lower-order modes are chosen.

因为用有限元离散时，柔性薄板的广义坐标规模较大，故仿真计算需要时间较长，所以模态截断法被用来缩减广义坐标数量，提高计算效率。

According to the boundary condition of the actual rectangular plates, it is very easy to get the characteristic equation for the problem through the boundary value of the generalized solution.

根据实际矩形板的边界条件，再应用弹性矩形薄板稳定问题的广义位移解的边界值，很容易便可得到该稳定问题的特征方程。

The low sky was like a sheet of metal; the blond cornfields had faded out into ghostliness at last; the little pond was frozen under its stiff willow bushes.

低垂的天穹像一张金属薄板；金黄色玉米地终于变得模糊不清；柳树丛下的小水塘封冻了。

Introduction: Razor barbed wire is made form sharp angular plate galvanized steel or stainless steel blade and denial equipment which consists of high-tension wire .Because of gill net's specil shape ,it's difficult to be reached, which can get an excellent protective effect.

刀片刺网由锐利尖角镀锌钢板或不锈钢薄板做刀片及高张力钢丝做芯线组合而成的阻绝器材，由于刺网造形独特不易触摸，因而能达到极好的防护效果，美观，防护效果好。

DF-10 with capability of generating biosurfactants was screened out from sludge and Lamella-Analysis results showed that glycolipid was the main ingredient for the biosurfactants.

对筛选出的一株能产生表面活性剂的芽胞杆菌DF-10的发酵液进行薄板层析，表明所产表面活性剂的主要成分为糖脂。

Based on the Hamilton principle, the vibration equation of the plate and its analytical solution can be obtained.

根据哈密尔顿原理，就可以得到薄板在磁场中的振动方程及其解析解。

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。