1.Time frequncy(T-F) analysis is a method studying thin interbedding structure onthe base of T-F changing pattern of seimic response.
时频分析根据震响应的时频变化规律研究薄互层结构的法。
2.The transitional zone is characterized by interbedding of pyroclastic and sedimentary rocks,and a little volcanic lava rocks was also found in the strata.