The flood characteristic of the main stream of Songhua river is that the flood is mainly from Nenjiang river, the flood hydrograph is gently, the timeofpropagation of flood peak is longer.
松花江干流洪水特征是:洪水主要来自嫩江,洪水过程平缓,洪峰持续时间长。
2
Applies default root permissions to the OS partition and propagates them to unprotected children. Propagationtime depends on the number of unprotected children.
将默认根权限应用于OS磁盘分区并传播到未受保护的子分区。传播时间由未受保护的子分区数决定。
3
The measurement and inspection methods based on ultrasonic technology usually request accurate measuring the propagationtimeof ultrasonic wave in media.