The story tells of a runaway slave girl in Louisiana, circa 1850.

Put yourself in the shoes of an AIG Financial Products executive circa February 2008.

把你自己想像成是2008年2月前后就职于AIG金融产品部门的一位高管.

In this picture taken circa 1935, military aircraft fly over the statue.

在这张摄于1935年的照片中, 美国军用飞机从自由女神像头顶掠过.

He sounds as though he is confusing Brussels with the Kremlin, circa 1980.

听起来,他好像把布鲁塞尔与1980年前后的克里姆林宫混为一谈了.

The year during with Voldemort began his rise to power is given as circa 1970.

伏地魔势力的兴起的年代大约在1970年.

Circadian cancer biology: Does the time of day we treat matter?

癌症的时间生物学: 治疗癌症的时间重要 吗 ?

Biologists found that they could throw the retinal rhythms out of sync with other circadian cycles.

生物学家发现它们可以独立于其它同步创造性时间周期的存在.

Conclusion Ventricular repolaization time had circadian rhythm ( long at night, short in day ).

结论:心室复极时间存在夜长昼短,午后稍回升的 节律.

Thus, a circadian rhythm is one that varies through a roughly 24-hour cycle.

昼夜节律大概没24小时构成一个循环.

Regular mealtimes, not just regular sleep times, help regulate our circadian rhythms.

不仅是有规律的睡眠时间, 有规律的饮食时间也对调节我们的生理节奏有帮助.

These physical and neural changes can lead to muted signals to the circadian system.

这些生理上和神经上的改变能引起沉默信号传递给生理节奏系统.

The circadian periodogram calculated the period length of the rhythm of average woman.

月经周期可以影响静息-活动昼夜节律时相.

A man named Yan was explaining the science behind sleep and the circadian rhythm.

一个叫Yan的人解释了存在于睡眠和昼夜节律背后的科学.

And then indicate that different spectrum in photopic photometry, mesopic photometry, scotopic photometry and circadian photometry.

进而提出不同色光在明视觉光度学 、 介视觉光度学 、 暗视觉光度学和日变光度学的光效率.

Mechanisms involve circadian changes in cellular metabolism and proliferation processes, as well as drug pharmacokinetics.

其发生机制与细胞代谢过程及药物的药代动力学的昼夜节律性变化有关.

Objective To find the relation between diabetic retinopathy and blood pressure or circadian rhythm.

目的研究血压升高和昼夜节律与糖尿病视网膜病变的关系.

Conclusions The circadian rhythm of blood pressure has good stability.

结论老年人的血压昼夜变化具有良好的稳定性.

Results The adverse reactions of chemotherapy according circadian rhythm were lower than that of routine chemotherapy.

结果时辰化疗所致不良反应远低于常规化疗方法.

And shift workers and frequent fliers can develop a circadian rhythm disorder.

轮班工人和频繁飞行者会出现睡眠节律障碍.

Objective To compare the adverse reactions of routine chemotherapy and Chemotherapy according circadian rhythm.

目的对比观察时辰化疗与常规化疗方法在肿瘤患者中的不良反应程度.

Circadian rhythms show persistent, stable periodicities of about 24 hours.

昼夜节律表现出大约24小时的连续而稳定的周期性.