alloy backing meaning in Chinese

合金牙板
合金牙背

Then we studied the effect of junction uniformity on the aluminum - alloyed back surface field to solar cell performance . the formation theory of aluminum - alloyed back surface field , the effect parameters to the doping concentration and the junction depth were analyzed
比较了两种商业太阳电池的杂质浓度分布及结深情况；叙述了铝背场的作用及形成原理，对影响铝背场表面浓度和结深的参数作了分析。