main transformer air duct 主变压器风道
The main manufacturers for air duct cleaning robot, the features of the robots manufacturedboth abroad and in China, and the applications of robot for air duct cleaning in China were described.
介绍了国外风管清洗机器人的主要生产厂家、国产机器人和外国产品的各自特点及国产机器人的应用情况。
The new method of designing duct of balanced air suction by means of computer is suggested on the basis of analysing constant and decreasing velocities in the main collecting points.
本文在分析均匀吸风管道等速设计法和降速梯形设计法的基础上，提出了利用计算机设计均匀吸风管道的新方法。
Analyses glass-fiber board air duct, introduces its main technical characters, and briefly narrates its fabrication and installation.
全面分析复合玻纤板风管，介绍其主要技术性能指标，并简单叙述其制作和安装。
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