screening agent

基本解釋

Nanosized titanium dioxide is an ideal physical UV-screening agent.
介紹了納米二氧化鈦屏蔽紫外線的原理；
Strippant, screening agent and their concentration are determined. Regeneration and recycle of the resin are studied.
對解吸劑和掩蔽劑及其濃度的選擇做了較詳細的探索，竝研究了樹脂再生和循環(huán)使用情況。
Based on different action principle, light stabilizers were defined as ultraviolet light screening agent, ultraviolet absorbent, quencher and free radical catching agent.
根據(jù)光穩(wěn)定劑作用機理的不同，將光穩(wěn)定劑分爲(wèi)光屏蔽劑、紫外線吸收劑、激發(fā)態(tài)猝滅劑及自由基捕獲劑。