marginal value

• 临界值

marginal value的用法和样例：

例句

1. Nothing happens until the excitatory stimulus exceeds a certain "threshold" value.
   兴奋性刺激超过某一临界值以前毫无反应。
2. Since it was a bi-modal distribution of TST reaction, using age specific, risk based cut-off value for children was mandatory.
   由于这个反应的分布是双峰型的，有必要在不同年龄，不同危险性的儿童，使用不同的临界值。