... Silver Spring's board "Elevators, Escalators and Stairs", followed by 203 people on Pinterest. See more ideas about stairs, escalator, floor graphics. ... <看更多>

This motorized step transforms a staircase into a lift so you can climb up the stairs with ease. Credit: Al-Sus Technologies. ... <看更多>

Once you get yourself moving, the escalator does not accelerate you and does not assist your running up hill. ... <看更多>