goldrefining

例句：

1. 1.Gold refining is a complex process that involves separating gold from other metals in ores.
   黄金提炼是一个复杂的过程，它涉及从矿石中分离出金与其他金属。
2. 2. The refinery produces refined oil for use in vehicles and cooking.
   炼油厂生产精炼的油用于车辆和烹饪。
3. 3. The gold refinery was closed due to safety concerns after an accident last year.
   由于去年发生的事故，黄金精炼厂因安全担忧而关闭。