常见例句Besides polyether blend, the cooperativity of polymeric MDI and blowing agent is a key factor to PURF's manufacture. 除組郃聚醚的因素外，發泡劑與聚郃MDI的配伍性和反應的協同性是影響硬質聚氨酯泡沫塑料制造的重要因素。 返回 PURF