velocity of piston的意思|示意

The calculated piston wind velocity accords with the measured result on site through making a comparison with tunnel aerodynamic test data of real vehicles.

以实车的隧道空气动力学试验资料为参照进行对比计算，计算活塞风速度与实测结果较好符合。

It is very complex to calculate the aerodynamic drag of high-speed train running in railway tunnel with multi -shafts. And the difficulty is to calculate the velocity of piston wind.

在高速列车空气阻力计算中，多竖井隧道的列车空气阻力计算比较复杂，其难点在于多竖井的活塞风计算。

This paper attempts to establish a calculating formula of piston wind velocity in tunnel with double shafts to solve this problem.

本文试图通过建立双竖井隧道的活塞风计算公式，以解决双竖井隧道空气阻力计算的困难。

By added the servo motor, the simulation is realized, and the dynamic analysis is reported, thereby the velocity and acceleration of piston in normal power export state is acquired.

并对正常功率输出状态下曲柄活塞机构的运动进行了动力学分析，得出了活塞的速度和加速度分布。

The variation of muzzle velocity with piston weight is increased first, and then decreased.

初速随活塞质量的变化是先增大而后减少。

One end of a probe telescopic rod is provided with an ultrasonic sensor, a flow velocity determinator, a pressure sensor and a vacuum piston water sample collector.

探头伸缩杆一端安有超声波传感器、流速测定仪、压力传感器和真空活塞水样采集器。