由于受建设时期技术条件和认识的局限，其制酸装置的中、低温位余热回收不够完善。
Due to the limitations of technical conditions and knowledge, at that time they didn't set low-grade heat recovery system in the process of acid.
由于受建设时期技术条件和认识的局限，其制酸装置的中、低温位余热回收不够完善。
Due to the limitations of technical conditions and knowledge, at that time they didn't set low-grade heat recovery system in the process of acid.
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