One variation on vertical farming that has been developed is to grow plants in stacked trays that move on rails.
垂直农业发展出来的一个变化是，在堆叠的、在轨道上移动的托盘上种植植物。
2
In the second variation, called the "vertical archipelago", the village exploits resources in widely dispersed locations, constituting a series of independent production "islands".
第二种变异称为“垂直群岛”，村庄在广泛分散的地点开发资源，构成一系列独立生产的“岛屿”。
3
The orthogonal polynomials approximated to shear-moment deformation curves were employed as the basic function to describe the displacement variation along the vertical.