"suction" - key terms from Wikipedia

cutter suction
net positive suction	head
slab suction
soil suction	head
suction
suction	and discharge
suction	cavitation
suction	darts
suction	diesel injection
suction	dredger
suction	dredges
suction	fluid
suction	piles
suction	pipe
suction	pressure
suction	pump
suction	pump with valves
suction	side of the pump
suction	sweeper
trailing suction	hopper dredge