Second, the cryogenic technology research, product production and sales.
深冷技术研究，产品生产、销售。
Based on the cryogenic technology, a new flow sheet for air separation system is built.
基于深冷技术，建立了一个新的空分系统流程。
Based on the cryogenic technology, a new flow sheet for air separation system is built.
基于深冷技术，建立了一个新的空分系统流程。
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