On ground contact, the platform was designed to absorb shock by collapsing.

The Spacecraft will remain in hibernation without ground contacts awaiting possible future use.

Walkers: Robots that move using legs with differential ground contact.

The legs contain a variety of sensors, including joint position and ground contact.

Its surface is variable in character as a result of ground contact.

It is now apparent that I will receive no material support from my ground contact.

These behaviours presumably increase the ground contact and sensitivity of the legs.

This can lead to an accident if the aircraft is too low to effect a recovery before ground contact.

They require no foundation and have treated posts for ground contact.

However this resistance to decay in water does not extend to ground contact.