英语语法分析

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。

The isoseismal maps are valuable complements to the instrumental records.

线 图是仪器记录有价值的补充资料。

The first isoseismal lines were drawn by Liu Jichen of the earthquake of Anhui, in 1917 (Liu Jichen, 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)。