seismic focusseismic loadseismic velocityseismogramseismographseismologyselenitic cementself cleaning velocityself desiccationself dockerself equilibratingself limitingself primingself propelled craneself purificationself straining forceself stressing concreteself supporting stackself supporting towerself weightsemi rigid modelsemiaridsemicircular archsemiconfining bedsemidirect connectionsemidiurnal tidesemidry processsemielliptical sectionsemiflexible jointsemigravity wallsemihumidsemihydraulic fillsemiinfinite solidsemiperchedsemiperched groundwatersemiperched water tablesemipermeablesemipermeable materialssemipervioussemipervious boundarysemipervious materialssemirigidsemirigid connectionsemirigid framesemitrailersemiwet processsensible heatsensitive claysensitivitysensitivity factor