求翻译：添加相变材料Na3PO4•12H2O后，聚氨酯材料的燃烧时间明显缩短，聚氨酯的阻燃性能提高。最佳的添加方案为A3B3C2D3，即相变材料Na3PO4•12H2O添加量4%；相变材料Na3PO4•12H2O烘干温度50℃；催化剂辛酸亚锡加入量0.4%；催化剂辛酸亚锡加入量0.7%。是什么意思？

The after the add the phase change materials na3po4 • 12h2o, the the the the burning of time of the of polyurethane materials obvious shortened, that the of the flame-retardant performance of the polyurethane to improve. The best of the add program for the a3b3c2d3, na3po4 • 12h2o 4 percent of the a

Add phase-change material Na PO 4 •12 3 2 H O, polyurethane material combustion time decreases significantly, polyurethane is flame retardant performance. The best program to add A B 3 3 2 D C 3, phase-change material Na PO 4 •12 3 2 O H added 4 per cent; phase-change material Na PO 4 •12 3 2 H O dr

The increase changes material Na3PO4•After 12H2O, the polyurethane material combustion time reduces obviously, polyurethane being flame-resistant performance enhancement.The best increase plan is A3B3C2D3, namely changes material Na3PO4•12H2O recruitment 4%; Changes material Na3PO4•12H2O drying temp

Add phase change material Na3PO4 · after 12H2O, polyurethane materials burn time significantly reduced, fire-retardant performance of polyurethane. Best of the programme for A3B3C2D3, phase-change material Na3PO4 · 12H2O added: 4%; and phase-change material Na3PO4 · 12H2O drying temperature of 50 °

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