area of hydrothermal activity的意思|示意

The major big rift and two groups of the minor rifts approximately pointing to S-N in the area are the main pathway and the main tectonic crack of heat controller for the hydrothermal activity.

区内近S—N向的主要大断裂和两组次一级的断裂是水热活动的主要通道和主要控热构造裂隙。

Tengchong is a famous active area of the modern volcano, where the hydrothermal activity is very violent.

腾冲不但是现代火山活动区，也是地热异常区，这里温泉、热泉及喷气孔到处可见。