isoseismal curves等震线
Comprehensive isoseismal综合等震线
isoseismal map等震图;等震线图
earthquake isoseismal等震线
isoseismal line[地震] 等震线
isoseismal curve等震线
conjugate isoseismal lines共轭等震线
innermost isoseismal line最内等震线
isoseismal of PGVPGV等值线
ADJ（形容词） of or relating to equal intensity of earthquake shock 等震的
N（名词） a line on a map connecting points at which earthquake shocks are of equal intensity 等震线