停滞时期 meaning in Chinese

plateau

This hiatus in american science lasted about four years .
就美国科学界来说，这段停滞时期持续了四年左右。
The country enters a period of stagnation
这个国家进入了经济停滞时期。
As the transition begans , for institution and structure reasons , the property competition capacity dropped , and problems as the low market degree showed off , the economy development slumped into stasis period
但自从我国经济转轨开始之后,由于体制和结构等原因,产业竞争力下降,市场化程度不高等问题日益凸现,自身经济也陷入相对停滞时期。