System and method for controlling intelligent traffic signal lamp based on power line carrier
Plate type rotor head of closed ultra-light two-seat helicopter
A rigidity-self-adapting crawler-type mobile robot suspension system
Suspension system with adjustable rigidness for caterpillar track type mobile robot
Suspension system with electrically adjustable rigidness for caterpillar track type mobile robot
Verfahren zur Ermittlung eines Belegungsgrades einer Parkeinrichtung