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1)  first-degree heating network
一级热网
2)  1st loop of hot water network
热水一级网
1.
Explosion on operation calculation of the 1st loop of hot water network in "tri-cycle" district heating system;
“三环制”供热系统中热水一级网运行计算研究
3)  first-level pipeline network
一级管网
1.
This paper briefly states the operational principle of 200H forerunner pressure reducing valve,introduces the connection mode,type selection calculation and economy comparison when using it to use backwater of first-level pipeline network to supply water and stable pressure of second-level pipeline network.
本文简要介绍200H先导式减压阀的工作原理,重点介绍用其作为由一级管网回水向二级管网补水定压主要阀件时与热网的连接方式、选型计算及与用补给水泵向二级管网补水定压方式的经济比较等问题。
4)  the first class net
一级网
1.
Regulating the first class net water power with self-operated flow regulator;
利用自力式流量调节器调节一级网水力工况
5)  secondary heat networks
二级热网
1.
The paper reported the type selection of self-operated flow controllers added in the secondary heat networks, the analysis of heating effect,and saving energe effect.
介绍了二级热网加设自力式流量控制器的设计选型 ,并就供暖效果、节约能源效果等进行了分析。
6)  multi level heat supply network
多级热网
1.
Describes the structure, functions, characte ri stics, control schemes and application effects of the distributed computer monit oring system for multi level heat supply network.
介绍了多级热网分布式微机监控系统的结构、功能、特点、控制方案及应用效果。
补充资料:热熔胶网
分子式:
CAS号:

性质:蛛网状热熔胶具有以下特点:(1)使用时不需专门涂胶机,可用家用熨斗和工业用平板压机、压延机等;(2)胶厚均匀;(3)使用无残胶浪费;(4)粘接后制品保持通气性,有良好吸音特性;(5)柔软;(6)适于粗糙面黏合。网状热熔胶可用纺丝黏合法制造,如热熔胶粒子通过挤出机,纺丝嘴成丝,分散于传送带上成网。热熔胶品种有EVA、聚酰胺、聚酯、聚酰胺与改性烯烃拼混等。热熔胶网适用于衣料、汽车顶棚、门框、地毯、行李箱内装饰、过滤材料、隔音板材、卫生材料等生产。

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