A new type of control valve for single pipe system is introduced.

介绍了一种适用于单管系统的新型调节阀。

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This paper analyzes air source in heating system, states that gas is harmful in the system, points out level pipe gradient being small in single measure system, and velocity of flow must keep great.

本文通过分析采暖系统中的空气的来源，提出空气在系统中的危害，针对单户计量系统中水平管坡度较小，提出水平支管中水流速应保持较大。

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Based on the practical experience for many years, performs simpler reforms of the conformation of original single? Pipe heating system.

根据多年的实践经验，对原有单管供暖系统的结构进行了简单的改造。

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Gamers do not have to worry about excess heat while having all of their settings cranked up, keeping the laptop cool is accomplished by an efficient and quiet design using a larger, single omni-directional blower fan and dual heat pipe and heat sink system, minimizing the noise and increasing the efficiency over other designs that utilize two smaller and louder blowers.

ENGADGET: Maingear announces Nomad 15 gaming laptop: small in size, big on specs