而阴极则是无害的贮氢合金而非有害的镉。
The cathode, however, is composed of a harmless hydrogen-absorbing alloy instead of toxic cadmium.
采用实际城市污泥为研究对象，通过控制阴极液酸度和添加络合剂，考察了镉的动电过程。
The effects of controlling acidity of cathode pond solution and adding complex agents on Cd electrokinetic processes in actual sewage sludge were investigated.
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