magma activity的用法和樣例：
例句
- The formation of the geothermal area has related with structure magma activity and depths structure variation since the Mesozoic-Cenozoic Era.
易家河地熱區的形成主要與中新生代以來(lái)深層構造變異帶的構造巖漿活動(dòng)有關(guān)。 - Granites at the middle Variscian period are the largest scale magma activities on the Caledonia foldbelt inthe west Tianshan mountain.
海西中期花崗巖是西天山加里東褶皺帶內規模最大的一次巖漿活動(dòng)。
