In particular, in spring 1997 Chou Dean-yi's team developed an "ambient acoustic imaging" method which produced the first ever images of the internal structure of the sun, and thus pushed NTHU's helioseismological research to new heights.
尤其九七年春天，周定一團隊研發出的「聲波成像法」首次獲得太陽內部影像，更將清大日震研究推上高峰。