The design method of safety protection system of air blower in large scale device of producing sulphuric acid from sulphur was described.

介绍了大型硫磺制酸装置中空气鼓风机安全保护系统的设计方法。

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Third, as suggested in the study of human cells, the ellagic acid reduced inflammatory response and MMP secretion due to protection from the degradation of collagen.

第三，与人类细胞试验结果一样，鞣花酸可以减轻炎症反应，减少MMP分泌，以此保护胶原蛋白不被降解。鞣花酸同样也能防止表皮增厚。

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Disclosed is a method which recovers pure acid from the waste acid contains metallic ion and reproduces alkaline, and belongs to the environmental protection field.

一种从含金属离子的废酸中回收纯酸并再生碱的方法，本发明属于环境保护领域。

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