英语语法分析

The accumulation of deep gas is controlled by the volcanic apparatus, which consists of 3 elements: volcanic plateau, pericline and crater, all having clear seismic reflective characteristics.

火山机构由3个基本要素组成，即火山堆积高地、围斜构造和火山口，在地震剖面和水平切片上反射特征明显。