As people's awareness of environmental protection increasing, developing and studying on new phosphate-free detergent builder to replace STPP has been an urgent and important task.
随着人们环保意识的提高，研究和开发取代三聚磷酸钠的新型无磷助洗剂成为一个迫切而重要的研究课题。
As people's awareness of environmental protection increasing, developing and studying on new phosphate-free detergent builder to replace STPP has been an urgent and important task.
随着人们环保意识的提高，研究和开发取代三聚磷酸钠的新型无磷助洗剂成为一个迫切而重要的研究课题。
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