iron gossan的用法和样例：
例句
- In the tropics, the gossan gold deposit ,a reformed type ,is one of the lateritic gold deposits.
在热带亚热带地域内，铁帽型金矿床应囊括在红士型金矿床之中，属红土型金矿床再生改造型。 - 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.
建筑用模板，脚手架配件，铁路预湿件，悬式绝缘子铁帽，铸铁法兰。
