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