The heart, blood vessels and lymph vessels connect to form a set of closedpipesystem.
心脏、血管和淋巴管互相连通，共同组成一套密闭的管道系统。
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This system adopts auto intelligent control , less maintenance personnel , lower labor intensity ; and adopts closedpipe connection to assure the site tidy , and applies to all scale enterprise .
In this paper, the three-phase flow heat transfer enhancement technique is applied to closed gravity heat pipe and a set of three-phase flow gravity heat pipe system is set up.