Objective. To investigate the effects of static compression with different loading magnitudes and durations on the intervertebral disc over a period of time.
目的：研究不同强度和持续时间的静态压力作用一段时间后对椎间盘的影响。
2
On compression of the video, this text adopts hardware compression method considering the price and development period.
在视频的压缩问题上，本文考虑到性价比及开发周期等因素，采用的是硬件压缩方式。
3
Combining bitmap compression method, it expounded the compression theory of RAY algorithm and period algorithm respectively.