spent caustic from ethylene的意思|示意
                        
                          美 /  /
                          
                        
                          英 /  /
                          
                      
                      乙烯产生的废苛
spent caustic from ethylene相关短语
1、 Spent caustic from ethylene plant 乙烯碱渣
2、 spent caustic from ethylene plants 乙烯废碱液