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N the prevailing climate of a large area 大气候
It is proved by practice and tests that crystallizable erosion of concrete by sulfates in water and soil is one of the most serious ones influenced by macroclimate.
水、土中硫酸盐对混凝土结晶腐蚀，经工程实践和实验研究证明是受宏观气候影响最大的一类腐蚀。
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