The promotion effect of lanthanide-dop-ant was briefly discussed. 作者主要讨论了掺杂的镧系元素的促进效应。
A social facilitation effect is maintained, and a social loafing effect can be avoided, when there is a culture that supports teamwork. 当存在一个支持合作的文化时,社会促进效应就会维持,社会虚度效应能够避免。