Ihe mgbochi mmiri viscous bụ ngwaọrụ hydraulic nke na-ewepụ ike kinetic nke ihe omume seismic ma na-ebelata mmetụta dị n'etiti ụlọ.Ha dị iche iche na enwere ike ịhazi ya iji kwe ka mmegharị n'efu yana njikwa damping nke ihe owuwu iji kpuchido ibu ifufe, mmegharị ọkụ ma ọ bụ ihe omume seismic.
Ihe mgbochi mmiri viscous bụ cylinder mmanụ, piston, mkpanaka piston, lining, ọkara, isi pin na akụkụ ndị ọzọ bụ isi.Piston nwere ike imegharị mmegharị ahụ na cylinder mmanụ.A na-eji piston arụ ọrụ na-ekpo ọkụ yana cylinder mmanụ jupụtara na mmiri mmiri na-ekpo ọkụ.