rapidness
n. 快；迅速
同义词
参考例子
1.In comparison with the traditional methods, this approach is closely combined with computer image technology and has the advantages of quantitativeness and rapidness.
与传统的孔隙系统研究方法相比，该方法与计算机图像技术紧密结合，具有定量、快速的明显优势。
2.Simulation result show the prediction method based on BP neural networks have simplicity of operation, speed rapidness, convenience of modifying errors, high precision.
从预测过程和结果分析，基于BP神经网络城市供水管网预测方法操作简单，运行速度快，误差修正方便，精度高。
3.Current indices of departure intervals and trawl speeds which both feature the rapidness of metro are not satisfactory and should be noticed while surface communication is speeding up.
地铁交通快捷特征的指标-发车间隔和旅行速度并未达到令人满意的程度，在地面交通快速化之后能否保持优势值得关注。
英文解释
n.
1.a rate that is rapid