In {HEAD ~ Step} 24, the pumping of {TAIL ~ the solution} containing solid microparticles is paused, and the replaceable sludge can 14 is hoisted out and replaced 
In { HEAD ~ Step } 24 , the pumping of { TAIL ~ the solution } containing solid microparticles is paused , and the replaceable sludge can 14 is hoisted out and replaced
OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH