We also detected the orbits with higher periods, and highly significant unstable period 2 and period 3 orbits were identified.

在此基础上，进一步对阵发放电的非稳定周期轨道分级进行了初步研究，检测到了显著的周期2与周期3轨道。

youdao

This represents a fall of more than half over the same period, from 2, 500 offences to 1, 200.

这些数据表明了同一时期的犯罪行为下降了一半，从2500降到1200。

youdao

The Lessor agrees that he shall not increase the rent for a period of 2 years from the date of this contract signing.

出租人同意在本合同签订之日起2年内不得增加租金。

youdao

But this home contains over 2,000 pieces of art organized from room to room by period and by geography.

VOA: special.2009.01.11

So, for example, we can move to the next periods in the periodic table. When we talk about a period, we're just talking about that principle quantum number, so period 2 means that we're talking about starting with the 2 s orbitals, period 3 starts with, what we're now filling into the 3 s orbitals here.

我们可以移至周期表的下一个周期,当我们讨论一个周期时，我们仅仅讨论,周期3以我们所填充的3s轨道，开始填充所以周期2意味着,我们从2s轨道谈起，周期3以我们所填充的3s轨道开始填充。

麻省理工公开课 - 化学原理课程节选

.. The equity premium is the-- 2.8% this short-term 2.8% is the riskless return, historically, for a period of almost 200 years.

股权溢价就是-,这个短期无风险投资收益率是，是根据近200年的数据得出的。

耶鲁公开课 - 金融市场课程节选

Entry Period 2 begins at 1PM ET on August 6, 2012 and ends at 12PM ET on September 7, 2012.

ENGADGET: 's back to school guide 2012: ultraportables

Also, bonds offer more stringent call protection, with an average no-call period of 2.8 years and stiff premiums thereafter.

FORBES: Connect

When the research was first conducted in 2004, 37% of women off-ramped for an average period of 2.2 years.

FORBES: One-Third Of Women Fleeing The Workforce