6SE70 series inverters, due to good quality, the failure rate is significantly reduced, we often encounter the phenomenon of failure F008 (DC voltage is low), because it is directly through the resistance to step down to obtain the sampling signal, so the main reason for the failure of F008 Da…

Recently, WorldHeart announced the success of a new generation of implantable ventricular assist device (VAD), HeartQuest. The VAD is a bearingless constant current rotary blood pump with the only moving part inside it being a magnetically suspended turbine.
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Driving brake is used to ensure the safety of people and vehicles. The braking system of the vehicle is related to the braking distance of the braking syste…

At present, China's drying equipment industry has begun to enter a relatively mature stage of development, although there is still a certain gap between and developed countries, but overall, the prospects for the production of drying equipment business is still very considerable. According …