Wind direction, wind velocity, air temperature and air pressure have a very great effect on the propagationofpressure waves.
风向、风速、气温和气压对压力波的传播有十分巨大的影响。
2
Wind direction, wind ve lo city, air temperature and air pressure have a very great effect on the propagationofpressure waves.
风向、风速、气温和气压对压力波的传播有十分巨大的影响。
3
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.