There is a practical limit to reducing bandwidth since very long - term measurements become susceptible to other errors, such as time and temperature drift.
减小带宽时有一个实际的限制，如果测量时间太长，测量就容易受到时间和温度漂移等其它误差的影响。
2
This drift makes the odom frame useless as a long-term global reference.
这种移动使得odom坐标系不能作为长期的全局参考。
3
The study found that there are still a long-term polar drift and cycle of about 30 years of long-period oscillation.