The main results of the paper are as follows : ( 1 ) research on flood propagation time 其主要研究成果如下: ( 1 )水量傳播時(shí)間研究。
The start points of output strain and reflect strain can be got by calculating propagation time of elastic wave through the bars 反射波和透射波的起點(diǎn)根據(jù)波在桿中的傳播過(guò)程來(lái)計(jì)算。