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lignin resin
 lignin resin
polym. 木素树脂
| fixed biofilm
 fixed biofilm
tech. 固着生物膜
| anaerobic fluidized bed
 anaerobic fluidized bed
tech. 厌氧流化床

to phrases
lignin resin
polym. 木素树脂
tech. 木质素树脂
lignin resin: 7 phrases in 4 subjects
Chemistry1
Oil / petroleum1
Polymers2
Technology3