feed forward 是什么(乙烯进料)? taking a furnace off line or putting one online has a major effect of feed forward, approximately 20% of total feed either way. 我理解是“taking a furnace off line or putting one online”对进料有影响,forward应该是“超前”(开始理解是正向、顺流,似乎又不通 ),feed forward可否理解为“进料超前”(以补偿时间差?),但这两种情况不会都是超前的影响吧?后面的either way更让人困惑,20%是指总进料量还是总进料流量?feed除了包含烃类外,包括蒸汽吗?查看更多