hydrothermal vein type的用法和樣例：
例句
- Epithermal gold depeits formed in Late Paleozoic volcanic formations are considered as an importantmineralizing type newly found in northem Xinjiang.
產於晚古生代火山岩中的淺成低溫熱液型金礦床是新疆北部近期發現的一個重要的金成礦類型。 - The wallrock alteration is weak, with characteristics of medium-low T hydrothermal ore deposit.
圍岩蝕變微弱，具中低溫熱液礦床的特徵。
