long-distance propagation

A simple approximate calculation method is given, which can exactly reconstruct the long distance non ideal propagation of detonation waves in the spherical shell of the charge.

针对实验结果给出一种简便的近似计算方法，它能准确地重现炸药球壳中长程绕射爆轰波的非理想传播行为。

The authors indicate that the residual deformation would fission into two deformation fields with different propagational velocities and different directions in a long distance propagation.

作者指出，剩余形变在长距离传播中会裂变为两个不同传播速度、不同方向的形变场。

People show great interest in shortwave communication for its special merits such as flexibility, not easily be destroyed and long propagation distance.

短波通信以其机动灵活、抗毁性强、通信距离远等特殊的优点重新引起人们的研究兴趣。