Between these Rumsfeldian bookends , scientific skepticism was rampant.是什么意思？

Between these Rumsfeldian bookends , scientific skepticism was rampant.

在知与未知之间, 正是科学怀疑论滋长之处.

between

prep. 在…之间，私下，暗中，在…中任择其一，来往于…之间；adv. 当中，中间；

例句
How big is the abyss between what you think you are and what you actually are?
你对自己的认识和真实的你之间差别到底有多大？

these

adj. 这些的；pron. 这些；

例句
There's lots of money about these days for schemes like this.
近来这类计划资金充足。

bookends

N-COUNT 书挡;书靠；

例句
Between these Rumsfeldian bookends , scientific skepticism was rampant.
在知与未知之间, 正是科学怀疑论滋长之处.

scientific

adj. 科学的，有系统的，应用科学的，精通学理的，有学问的；

例句
Dr Subroto questioned the scientific assumption on which the global warming theory is based...
苏布罗托博士质疑全球变暖理论所依据的科学假设。

skepticism

n. 怀疑态度，怀疑论，多疑癖；

例句
Both are marked by skepticism toward truth, objectivity, and coherent narratives.
这两者之所以受重视在于它们对真理, 客观性, 与前后一致的说明抱持怀疑论.

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

rampant

adj. 蔓延的，猖獗的，（指动物）只用后腿站立的，（植物）疯长的；

例句
She alleged that there was rampant drug use among the male members of the group...
她声称该团体中有大量的男性成员吸毒。