各位大神,请问一下:
The photo-resist used in these experiments is a mixture of tri- and tetra-acrylates and 7-Diethylamino-3-thenoylcoumarin as a photo-starter which can be readily quenched via STED.
以上句子中所用的材料—— tri- and tetra-acrylates and 7-Diethylamino-3-thenoylcoumarin 指的是哪种材料!
谢谢啦!!!!!急需解答……