critical period

基本解釋

As for the counterinsurgency campaign—this summer is going to be a critical period.
對(duì)于平叛行動(dòng)來上，今年夏天會(huì)是一個(gè)關(guān)鍵時(shí)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.
她認(rèn)為，幼童時(shí)期中存在一個(gè)關(guān)鍵階段，在這一階段缺乏睡眠對(duì)孩子的成長尤為不利，即使他們今后的睡眠習(xí)慣有所改善也無法補(bǔ)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.
明年是上合組織成立10周年，在當(dāng)前復(fù)雜的國際和地區(qū)形勢背景下，上合組織發(fā)展到了一個(gè)關(guān)鍵時(shí)期。
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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.
農(nóng)業(yè)村莊在石器時(shí)代后期,以及新石器時(shí)代隨處可見,但二者是有區(qū)別的,最重要的區(qū)別在于,城市能容納,相當(dāng)數(shù)量,無需自給自足的人口
耶魯公開課 - 古希臘歷史簡介課程節(jié)選
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

關(guān)鍵期
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.
結(jié)論:在大鼠生后發(fā)育關(guān)鍵期,聽覺經(jīng)驗(yàn)可改變聽皮層NMDA受體NR2A蛋白表達(dá)水平。
心理學(xué)
關(guān)鍵期
There is a distinct age difference in the development of children’s creative personality. The 4 year old is the critical period.
3.隨著年齡的增長,3～5歲幼兒創(chuàng)造性人格呈波浪式發(fā)展趨勢,總體發(fā)展存在顯著的年齡差異,4歲是幼兒創(chuàng)造性人格發(fā)展的關(guān)鍵期。
農(nóng)業(yè)科學(xué)
關(guān)鍵時(shí)期
When morphological plasticity showed biggest degree, it might be regarded as the critical period for cotton growth.
可塑性最大的時(shí)期是棉花生長的關(guān)鍵時(shí)期。
臨界期
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.
抽雄吐絲期是玉米的水分臨界期,干旱可導(dǎo)致散粉至吐絲期間隔（ASI）加大,致使花期不遇,穗粒數(shù)大幅度下降,從而嚴(yán)重影響玉米的產(chǎn)量。
生物學(xué)
臨界點(diǎn)
臨界期

臨界周期
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.
關(guān)于局部臨界周期分岔問題，前人已經(jīng)對(duì)二次多項(xiàng)式系統(tǒng)給出了十分豐富的結(jié)果。