屏蔽剂
agents───n.媒介；[法][贸易]代理人；药剂（agent的复数）
shield───n.盾；防护物；保护者；vt.遮蔽；包庇；避开；保卫；n.（Shield）（英）希尔德（人名）；vi.防御；起保护作用
causative agents───病原体; 致敏药物; 致病药物
oxidizing agents───氧化剂（oxidizingagent的复数形式）
teachable agents───教学代理
drying agents───干燥剂
secret agents───n.特工人员，特务( secret agent的名词复数 )；间谍；特务
suspending agents───悬浮剂
adventure agents───冒险特工
Marvel's Agents of SHIELD season three premiere is just two week away and ABC Television Network has today revealed details about the September 29 premiere.───漫威的《神盾局特工》第三季首映就只有2周啦，ABC电视网络今天展现了关于9月29日首映的一些细节。
effect of UV-radiation on PET and the stabilizing role of dulling agents and UV shield agents were investigated.───研究了紫外线辐射对聚酯纤维的影响以及消光剂、纳米紫外线屏蔽剂的稳定作用。
Two kinds of light-shield agents of ZnO and carbon black were used to improve the ageing-resistance of polyacetal(POM).───采用炭黑和氧化锌两种光屏蔽剂对共聚甲醛进行耐老化改性。