A six degree of freedom (DOF) nonlinear dynamic model of the airship was presented based on the bodyaxes coordinate system with the origin at the center of the volume.
在以体积中心为原点的机体坐标系中，建立了完整的六自由度非线性模型。
2
In body size and limb proportions it was much like modern people. Its stone-tool culture, known as the Acheulean, was typified in most regions by big, symmetrical hand axes.