An ABB variable speed drive system is to power the giant fan that generates subsonic wind speeds at Boeing's flagship wind tunnel in Philadelphia.
ABB的一个变速驱动系统正在为波音公司在费城的旗舰风洞的大型风扇提供动力，以制造出次音速风速。
This product is suitable for power and control system cable of underground tunnel shield construction machine and all kinds of robot, manipulator and possesses good flexural properties.
本产品使用地铁隧道盾构机和各类机器人，机械手的动力和控制系统的电缆，具有良好的弯曲性能。
The difficult problem of the automatization of measurement and CDntrol in the large low speed wind tunnel is an automatization of large power system and large Angle control system.
大型低速风洞测控自动化的难点是大型动力系统的自动化和大型变角控制系统的自动化。
The research in this thesis is focused on the low harmonic variable-frequency power for the system meeting the needs of wind tunnel propeller model testing requirements.
旨在研究满足螺旋桨飞机模型风洞试验要求的为高功率密度电驱动系统供电的低谐波变频电源。
LED street lamps, tunnel lights, outdoor landscape lights, outdoor lighting systems, protection of LED outdoor lighting power supply system from lightning damage.
应用于LED路灯，隧道灯，户外景观灯等众多户外照明系统，保护LED户外照明供电系统免遭雷击损坏。
At the same time, the application of frequency conversion can also save power consumption, and improve economics benefits within the operation of the tunnel ventilation system.
同时，变频调速的应用还可以节约大量电能消耗，提高隧道通风系统运营的经济性。
At the same time, the application of frequency conversion can also save power consumption, and improve economics benefits within the operation of the tunnel ventilation system.
同时，变频调速的应用还可以节约大量电能消耗，提高隧道通风系统运营的经济性。
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