secondary treatment
短语词组
- secondary oxidation treatment 二級氧化処理
- secondary sewage treatment plants 城市二級汙水処理廠
- secondary biochemical treatment 二級生化処理
- secondary solution treatment 二次固溶
- secondary sewage treatment 二級汙水処理;[環境]二次汙水処理
- secondary sewage treatment works 次級汙水処理廠;二級汙水処理廠
- secondary national treatment 次國民待遇
- secondary biological treatment 廢水的二級生物処理
- secondary waster treatment 二次廢料処理 返回 secondary treatment