iron gossan的用法和樣例：
例句
- In the tropics, the gossan gold deposit ,a reformed type ,is one of the lateritic gold deposits.
在熱帶亞熱帶地域內，鐵帽型金礦床應囊括在紅士型金礦床之中，屬紅土型金礦床再生改造型。 - Building structure template parts and scaffold parts, buried foundry goods used under the railway crosstie, Znsulator iron cap of suspending form series and ring flange.
建築用模板，腳手架配件，鐵路預濕件，懸式絕緣子鐵帽，鑄鐵法蘭。
