{HEAD ~ A vibration generator} is positioned on each of one or more container walls to introduce vibrations with a selected frequency through the container wall and into {TAIL ~ the chemical bath liquid} 
{ HEAD ~ A vibration generator } is positioned on each of one or more container walls to introduce vibrations with a selected frequency through the container wall and into { TAIL ~ the chemical bath liquid }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL