absolute speed drop的用法和样例：
- The inner flow field of modified Perspex impeller of a centrifugal pump was measured by advanced PIV system, and the absolute speed vectorgraph and original data of the axial eddy were acquired.
- Generally, the connection speed drops logarithmically with distance from the base station.
- The results have been lauded in progressive urban planning circles： the average car speed dropped， as did the number of accidents.
- The results have been lauded in progressive urban planning circles: the average car speed dropped, as did the number of accidents.