suction

Cutter suction dredgers harvest material for further expansion.

The most promising model is a robot with 12 arms, six on either side, each bearing a camera and suction cups.

They will silently show you how it’s done with an impossibly balletic ollie, their board magically suctioned to their soles as they slide down the whole length of the thing.

Robot arms tend to be equipped with two- or three-pronged pincers or with suction cups.

For pools filled with ash, he suctioned contaminated water with a vacuum truck and sent it to locations that treat wastewater.