【化】 mechanical face seal
engine; machine; machinery; mechanism
【化】 machine; machinery
【医】 mechano-
【经】 machine
face; surface; cover; directly; range; scale; side
【医】 face; facies; facio-; prosopo-; surface
airproof; pressure; pressurize; seal airtight; seal up
【计】 capsulation; encapsulation
【医】 lutation; lute
【经】 air proof; seals
