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空气的液化和氨的合成是和化学工业有密切关系的并且有长期发展基础的主要部门,可是自从低密度聚乙烯制造技术发展以来,超高压技术的应用才达到完善的地步。目前它是工业上需要大型超高压往复式
The liquefaction of air and the synthesis of ammonia are the major sectors that have a close relationship with the chemical industry and have a long-term basis for development. However, since the development of LDPE manufacturing technology, the application of EHV technology has been completed. Currently it is a large-scale industry that requires reciprocating UHV