| 英文名称: | | gases (petroleum), extractive, c3_5, butene-isobutylene-rich, reaction products | | with butene, isobutylene and methanol, distn. residues | | gases (petroleum), extractive, c3_5,butene-isobutylene-rich, reaction products with butene, isobutyleneand methanol, distn. residues |
|
m.cnreagent.com