The actual acidity occurring in ASS is determined by the relative intensity and comprehensive result of the four processes.

酸性硫酸盐土的酸害影响是上述四个过程相对强弱与综合作用的结果。

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The effects of controlling acidity of cathode pond solution and adding complex agents on Cd electrokinetic processes in actual sewage sludge were investigated.

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。

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The program gets kid outdoors and into the field to make actual environmental measurements, such as air temperature, waterway acidity, and sunlight intensity.

WHITEHOUSE: Office of Science and Technology Policy Blog