三层板 meaning in Chinese

threeply board
three-ply wood
trilaminate
triplex board
triplex sheet
triplexboard

Using three - order and first - order shear deformation theory to calculate a three - layer laminated plate , the numerical results show that , the pattern of the curves is similar for the two theories
数值算例对一三层板采用高阶和一阶剪切变形理论进行计算，结果表明两种理论所得的变形曲线很相似。
Using maxwell electromagnetic equations , by solving the boundary - value problem of magnetic vector potential , analytical expression to impedance increment of the solenoid coil in eddy current testing of the medium in half space was given . theoretical result was modeled in computer . results showed the validity and feasibility of the model
利用maxwell电磁方程组，通过求解矢量磁位的边值问题得到了矢量磁位的解析解，进而导出了媒质上方放置式空心线圈的阻抗增量解析式，并对阻抗变化表达式进行单层板厚度和三层板间隙的检测模型进行了仿真。