The NIH unitage is based upon the ability of a vaccine to protect mice against a standard intracerebral infection.

NIH单位值是根据保护小白鼠大脑内免受一次标准感染的能力而制定的。

The frequency of expenses of cost of former delegate overload, latter represents the bulk of the unitage of overweighted cost expenses.

前者代表超载成本支出的频率,后者代表超载成本支出的单位量的大小。