critical period

基本解释

As for the counterinsurgency campaign—this summer is going to be a critical period.
对于平叛行动来上，今年夏天会是一个关键时期。
She thinks there's a critical period in early childhood when the lack of sleep is particularly detrimental to development, even if sleep habits improve later on.
她认为，幼童时期中存在一个关键阶段，在这一阶段缺乏睡眠对孩子的成长尤为不利，即使他们今后的睡眠习惯有所改善也无法补救。
Next year is the 10th anniversary of the SCO. Against background of complicated international and regional situation, the development of the SCO has entered a critical period.
明年是上合组织成立10周年，在当前复杂的国际和地区形势背景下，上合组织发展到了一个关键时期。
www.fmprc.gov.cn

This is expected very soon in Cairo." The coming 72 hours,argues Saif, is a very critical period, as both parties jockey for position and fighting intensifies.
Agricultural villages will have existed all over the place in the late Stone Age, in the Neolithic Period, as it is known. But there is a difference and the critical difference is that a city contains a number of people who do not provide for their own support.
农业村庄在石器时代后期,以及新石器时代随处可见,但二者是有区别的,最重要的区别在于,城市能容纳,相当数量,无需自给自足的人口
耶鲁公开课 - 古希腊历史简介课程节选
It was during that critical waiting period 10 years ago that Klug decided if he pulled through, he would do everything in his power to help others going through the same thing.

But the critical period of surviving your surgery really happens after the surgery, after leaving the hospital.
FORBES: On the Mend: Lessons From the Road to Recovery

a period in a lifetime during which a specific stage of development usually occurs. If it fails to do so, it cannot readily occur afterwards

关键期
Conclusion:The results indicate that sound insulation and experience can modify the protein expression level of NR2A during the critical period of rat postnatal development.
结论:在大鼠生后发育关键期,听觉经验可改变听皮层NMDA受体NR2A蛋白表达水平。
心理学
关键期
There is a distinct age difference in the development of children’s creative personality. The 4 year old is the critical period.
3.随着年龄的增长,3～5岁幼儿创造性人格呈波浪式发展趋势,总体发展存在显著的年龄差异,4岁是幼儿创造性人格发展的关键期。
农业科学
关键时期
When morphological plasticity showed biggest degree, it might be regarded as the critical period for cotton growth.
可塑性最大的时期是棉花生长的关键时期。
临界期
Tasselling silking is the critical period for maize moisture,drought can cause the interval which is from loose powder to silking（ASI）prolonging,result in infertility flowering,kernel number decreasing significantly,thereby seriously affect maize production.
抽雄吐丝期是玉米的水分临界期,干旱可导致散粉至吐丝期间隔（ASI）加大,致使花期不遇,穗粒数大幅度下降,从而严重影响玉米的产量。
生物学
临界点
临界期

临界周期
In this paper, basic theory of local critical period bifurcation is introduced in chapter one, and then in chapter two, the general method to analyze common zeros of polynomials.
关于局部临界周期分岔问题，前人已经对二次多项式系统给出了十分丰富的结果。