supported trajectory meaning in Chinese

空气动力支承的飞行轨迹

Tb _ ppf - index is able to support trajectory based queries about the historical information of moving objects . first , the historical trajectories of moving objects are indexed by tb - tree after trajectory splitting . a buffer containing the latest trajectory segment is maintained for each moving object to support trajectory splitting
在tb _ ppf - index中,移动对象历史轨迹信息经过轨迹切分后利用tb - tree进行索引,在轨迹切分过程中为每一个移动对象维护一个缓冲区buffer以保存最近一段时间的部分轨迹。