The measurement error of differential absorption laser radar caused by the shift of its center frequency in measuring atmosphenc density has been discussed particularly.
详细地讨论了微分吸收激光雷达测量气体密度时中心频率的漂移所引起的测量误差。
2
As the shift comes about, people need to be ready because the density that you now experience will not align on the other side of the shift.
当转移出现，人们需要准备好因为你现在经验的密度将不会排列在转移的另一边。
3
The influence of alumina addition on the bulk density, mechanical strength, activity and thermal stability of high temperature shift (HTS) catalyst was studied in laboratory.