For this project is a heavier steel structure, plant production double-layer lattice rigid support scheme, the amount of steel per unit area save about 10%.
针对本工程为重型钢结构，对厂房采双层格构式刚性支撑方案，单位面积用钢量节省10%左右。
2
The external potential has many forms, such as harmonic oscillator potential, optical lattice potential, elliptic function potential, double well potential, and so on.
外势有许多形式：简谐外势、光晶格外势、椭圆函数外势、双阱外势以及含时线性外势等等。
3
A numerical simulation approach analyzing electromagnetic characteristics for dielectric-loaded double-layer frequency selective surfaces (FSS) with dissimilar lattice geometries is presented.