Iron line replacement method is used to recovery metal silver from silver sulfate in COD waste liquid, and it is reused to analyze, so analysis cost and environment pollution are decreased.

对COD废液中的硫酸银，采用铁线置换法回收金属银，进行循环使用，降低了分析费用，减小了环境污染。

youdao

She explained how the operation of the cod recovery plan would hit the prawn fleet.

BBC: December Fisheries Council Meeting

The Scottish government was pleased that the EU Commissioner, Maria Damanaki, accepted Scotland's interpretation of article 13 of the Cod Recovery Plan.

BBC: Fishing negotiations statement

He was delivering a ministerial statement on the cod recovery plan, which lays out how much time many European fishermen are allowed to spend at sea, on Wednesday 7 December 2011.

BBC: Ministerial statement: Cod recovery plan