The study of high freezing-rate facilities using Natural Coldness Resource(NCR) was analyzed according to the heat pipe technique in this paper.
以演示试验为根据，结合热管技术原理进行综合分析。
Compared with classical approach, acid active preparation has many merits such as high product and resource using rate, low energy consuming and easy manipulating.
和传统方法相比，酸活化法具有操作简单、资源利用率高、能耗低、产率高的优点。
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