velocity: n.1.迅速；快速。2.速度，速率。3.周转率。短语和例子at a velocity of 100 miles per hour 用每小时一百英里的速度。 dart off with the velocity of a bird 像鸟一样迅速飞跑过去。 drag-free velocity无阻力飞速，真空飞速。 escape velocity(克服地球引力的)第二宇宙速度，
Example Sentences:
1.
The relative difference between values of dry density measured by wave velocity method and pir replacement method is in the range of 1 % 根据相关方程由实测波速推测压实干密度值，相对试坑置换法的实测值，误差在1 %范围内。
2.
The study provides basic detection theory and practicel engineering experiences for popalarizing surface wave velocity method to detect dry density of compacted rock - fill layer in practice 本项试验为推广应用稳态面波法检测干密度值提供了理论依据和工程实践经验。
3.
Analysis is done on the change rules of liquid " s temperature along with the pipeline " s distance . the paper points out the defects of the const pressure wave velocity method and do some improvements on it : rebuilding the expressions of the pressure wave velocity in accordance with the simpson ' s rule 分析了管道内的流体温度随传输距离而变化的规律，并指出了此规律对管道负内压力波传播速度的影响。指出了常负压力波波速定位方法的局限性，并采用改进的负压力波定位技术，将管道内的负压力波速公式采用复化辛普森公式进行了改造。
