| 英文同义词: | duolite a7 free base;formaldehyde,polymerwithn,n’-bis(2-aminoethyl)-1,2-ethanediamineandphenol;Phenol,formaldehyde,N,N’-bis(2-aminoethyl-1,2-ethanediaminepolymer;Triethylenetetramine,formaldehyde,phenolpolymer;formaldehyde/ phenol/ triethylenetetramine copolymer;Duolite(R) A7 free base;duolitea-7ion-exchangeresin;Formaldehyde,polymerwithN,N’-bis(2-aminoethyl)-1,2-ethanediamineandandphenol |