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

前者代成本出的频率,后者代成本出的的大小。

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

NIH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。