And trucks ply Shahe roads loaded with bags of synthetic soda ash, the product of a chemical process environmentalists forced out of the U.S. in 1985.
卡车带着一包包人造的纯碱在沙河的路上来来回回，而这种化学产品正是1985年被美国的环保主义者所驱赶出去的。
This work introduces four process for dense soda ash production by extruding process currently used in China and foreign countries and the technology comparison.
介绍当今国外挤压法生产重质纯碱的四种工艺流程，并对其中两类流程加以技术经济分析和评价。
The research results are directive and with reference value for development of the new process of soda ash and ammonium sulfate co production by mirabilite.
研究结果对芒硝联产纯碱和硫酸铵新工艺的研究和开发具有指导和参考意义。
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