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七十年代,由加拿大政府和新不伦瑞克省资助,“新布伦瑞克研究和生产委员会(The New BrunsWick Research and Productivity CounCil称RPC)发明了RPC硫酸化焙烧和铅酸盐工艺。
In the seventies, funded by the Canadian government and the province of New Brunswick, the RPC sulfated roasting and lead-acid process was invented by The New Brunswick Research and Productivity Council.