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.
考察了振荡平衡时间（或流速），水相的酸度和干扰元素的影响。
The effects of oscillation equilibrium time (or flow—rate), pH of aqueous phase and the foreign ions on the extraction were examined.
考察了醇酸比，催化剂酸度，催化剂用量，反应时间，反应温度对酯化产率的影响。
The effect of acid-alcohol ratio, acidity of catalyst, amount of catalyst, reaction time, and reaction temperature were investigated.
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