rapidity助记

The disease is spreading with alarming rapidity.

这种疾病正在以令人吃惊的速度蔓延。

In allusion to rapidity of reactive power compensation, two current tracking control methods, called as current-hysteresis comparison control and triangle wave control, are investigated.

针对无功功率补偿的快速性这一特点，分析研究了目前比较实用的两种电流跟踪控制方法，即电流滞环比较控制方法和三角波比较方法。

Dynamic Cone Penetrometer ( DCP) is a new type of rapid testing equipment for subgrade. Its portability and rapidity are paid more and more studiers' attention, but the evaluation of compaction qualities with the comprehensive consideration of moisture influences is less studied.

动态圆锥贯入仪（DCP：Dynamic Cone Penetrometer）是一种新型土基快速检测设备，其轻便性和快速性得到了越来越多学者的关注，但是对于综合考虑含水率影响来评价土基压实质量的研究很少。