isoseismal造句

1、The first isoseismal lines were drawn by Liu Jichen of the earthquake of Anhui, in 1917.
刘季辰对1917年安徽地震第一次绘制出了等震线图(刘季辰，1917)。

2、What are isoseismal maps?
什么是等震线图？

3、The isoseismal maps are valuable complements to the instrumental records.
等震线图是仪器记录有价值的补充资料。