【化】 ball check valve
ball; globe; orb; sphere; the earth
【医】 ball; balloon; bulb; bulbi; bulbo-; bulbus; globi; globus; glomera
glomus; orb; sphaer-; sphaero-; sphere; sphero-
ceremony; formula; model; pattern; ritual; style; type
【化】 expression
【医】 F.; feature; formula; Ty.; type
【化】 check valve; non-return valve; one-way valve; retaining valve