... 送气通风系统 plenum system 供暖和通风系统 heating and ventilating system 强制预热通风系统 Howdensystemofdraft ...
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In heating, ventilating, air conditioning and other engineering system, there are many problems concerned with convection heat transfer.
在供热、供燃气、通风与空调以及其它许多工程系统中，对流换热问题广泛存在。
This system automatically can control heating, cooling, increasing humidity, irrigating, and ventilating.
该系统可自动控制加热、降温、加湿、灌溉、通风。
The company is committed to the sales of boilers, system installation, after-sales service as well as the development and application of heating and ventilating technology.
公司致力于锅炉的销售、系统安装、售后服务以及暖通技术的开发与运用。
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