夏至

这个期间内还间隔有一次夏至。

This period will be punctuated by the June Solstice .

明天就交夏至了。

Tomorrow will be the Summer Solstice .

过了夏至，天就开始变短。

The days get shorter after the Summer Solstice .

夏至之后白天开始变短。

The days begin to draw in after the summer solstice .

SD大鼠IL-2含量在春分与夏至之间存在显著性差异（P0.05）。

There is significant difference in the content of IL-2 between Spring Equinox and Summer Solstice ( P0.05 ) .

方法：采用大鼠松果体摘除模型，运用原位杂交技术，探讨了在冬至、夏至SD雄性大鼠睾丸CFos和CJUN的mRNA的变化规律。

Adopting rat pinealectomy model and in situ hybridization technology , we discuss the varying regularity of c fos and c jun mRNA in male rat 's testis in midwinter and in midsummer .

结果：睾丸CFos和CJUN的mRNA具有冬至表达强、表达量多，夏至表达弱、表达量少的特点和趋势。

Results : the expression degree and the amount of c fos and c jun mRNA in testis are of intensity and plenty feature and trend in midwinter while weak and insignificant in midsummer .

本文在前人已公布的暴时电离层动态资料的基础上，进行了太平洋地区冬至与夏至期间电子总量和F层特征的分析研究，取得了新的结果。

In this paper , features of the total electron content and F-region of the ionosphere over the Pacific area during the typical storms are analysed on the basis of published data and some new results are presented .

秋分时，三个品种绵羊血液中LH的含量在日落后有上升的趋势，小尾寒羊在春分、夏至和秋分时，血液中LH的含量一直呈上升趋势；

In autumn equinox , plasma LH in these three breeds had increasing trends after sunset . Plasma LH in Small-Tail Han Sheep was always increased after sunset in spring equinox , summer equinox and autumn equinox .

结果：血清T夏高冬低，LH夏至有升高趋势、FSH季节变化不明显；

The results showed that in the normal rats , T level was high in summer and low in winter , LH level tended to increase at Summer Solstice and FSH level had no obvious seasonal change ;

实验动物选用健康雄性SD大鼠，体重180-200g，分别于春分、夏至、秋分前14天购自于河北医科大学实验动物中心。

SD male rats , 180-200g weight , we got it from the laboratory animal center of HeBei Medical University fourteen days before Spring Equinox , Summer Solstice and Autumnal Equinox .

采用大鼠松果体摘除模型，探索了冬至、夏至SD雄性大鼠血清睾酮（T）、黄体生成素（LH）及卵泡刺激素（FSH）的变化规律。

The changes in the levels of serum testosterone ( T ), luteotropic hormone ( LH ) and follicule stimulating hormone ( FSH ) were studied in the pineal body removed SD male rats at the Winter Solstice and the Summer Solstice .

结果表明，从夏至起逐步缩短光照，冬毛提前生长并成熟，皮板和毛被质量与自然光照组无显著差异，且可提前30d打皮。

The result shows shortening light progressively from summer solstice , fur growth is advanced and mature , but the leather and fur quality are not significant difference between experiment group and control group , and it can advance taking-fur 30 days .

并在此基础上，计算了全国6个典型地貌类型区，在春秋分日、夏至日和冬至日，两个空间分辨率下（500m和1km）地面日照时间的空间分布。

In this study , 6 typical terrain areas within China were selected and their spatial distributions of sunlit time on the vernal and autumnal equinoxes , the Summer Solstice and midwinter day in two different resolutions ( 500m and 1km ) were calculated using the developed model .

这是一年中最长的一天—夏至。

the longest day of the year , the midsummer solstice .

夏至大概是在这星期，不是吗？

It 's midsummer sometime this week , isn 't it ?

夏天最热的日子在夏至之后开始。

The hottest days of summer begin after the summer solstice .

一种由美洲印第安人在夏至进行的祭奠舞蹈。

A ceremonial dance performed by Amerindians at the summer solstice .

老图克以前在夏至都会施放它们。

Old Took used to have them on Midsummer 's Eve .

像多年前的那个失去夏至的夏天。

Just like the summer which had lost years ago .

使夏至三倍受欢迎，三倍希奇。

Makes summer 's welcome thrice more wish 'd , more rare .

就像是新年除夕，同时又是夏至！

It 's like New Years Eve and midsummer at the same time !

明天刚好是夏至日

Now , tomorrow happens to be the longest day of the year .

中国东北地区夏至战国时期的考古学文化研究

Study on Archeology Culture of Xia Dynasty to Warring States in Northeast Region of China

夏至？这还用问哪。

The Summer Solstice ? Of course .

周二，瑜伽练习者在时代广场庆祝夏至，向太阳致敬。

Yoga practitioners salute the sun while celebrating the solstice in Times Square on Tuesday .

这日期温斯顿记得牢之又牢，因为那一天正是夏至；

The date had stuck in winston 's memory because it chanced to be midsummer day ;

我在这夏至之夜到这里来便没错了。

I had been right to come here , on the eve of the summer solstice .

很久以前，瑞典人认为夏至是个神奇的日子。

Long ago , people in Sweden thought the summer solstice was a time of magic .

如果目前你还没有这样的感觉，它会出现在这个非常特别的夏至周。

If you don 't already have this , it will emerge during this very special solsticeweek .