常見例句Besides polyether blend, the cooperativity of polymeric MDI and blowing agent is a key factor to PURF's manufacture. 除組合聚醚的因素外，發(fā)泡劑與聚合MDI的配伍性和反應的協(xié)同性是影響硬質聚氨酯泡沫塑料制造的重要因素。 返回 PURF