gassing of copper

例句：

1. 1. The steel was severely damagedby the gassing of the atmosphere.
   大气的气体腐蚀严重损坏了钢铁。
2. 2. Thechemical plant had to shut down due tothe gassing of the water supply.
   由于水源的气体腐蚀，化工厂不得不关闭。
3. 3. The metal was exposed to the gassing for several hours before it could berepaired.
   金属在暴露于气体腐蚀几小时后才能修复。