保护措施预防撞击和贯穿是用碳纤维和聚芳族胺，和透过高密度扩大的聚苯乙烯制成的垫塞。
Protection against impacts and perforation is ensured by a shell in carbon fibers and aramid, and by an expanded polystyrene inner padding with high density.
研究了不同质量比的聚苯乙烯(PS)三苯基二胺(TPD)复合空穴传输层对有机电致发光器件(OLED)性能的影响。
The effect of the composite hole transporting layer with different polystyrene (PS) -triphenyl diamine (TPD) mass ratios on the performance of organic light-emitting devices (OLEDs) was investigated.
以苯乙烯马来酸酐的共聚物树脂作为乳化剂，研究了其对形成蜜胺甲醛树脂微胶囊的乳化和成囊的作用机理。
The effect of the emulsifier styrene maleic anhydride copolymer (SMA) on the emulsification and encapsulation of melamine formaldehyde resin microcapsule was studied.
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