四组

Results The levels of ACTH and Cortisol were similar in all groups , and compared with

结果 四组儿童的血清ACTH和Cortisol 水平

Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and beta decay until a stable nucleus is achieved.

放射性系：四组不稳定的重原子核，通过一系列α衰变和β衰变直至达到稳定的核为止。

Meanwhile , frame structures are used as study object , the straightened algorithm which has better calculation precision with fewer calculation time is chosen as amende .

本文以框架结构为研究对象，在修正方法上选择了计算量小且修正精度较高的拉直算法，为验证提出的可靠性指标的可行性，对四组设计参数分别进行了修正模型和地震作用下的广义预测控制可靠性分析，从结果对比可知，本文所定义的可靠性指标具有一定的可行性，并且本文方法计算量较小。

The weight changes of the specimens were measured using an electronic analytical balance.

3四组试件经干燥达恒重后，分别于37士0.5℃的去离子水、人工唾液及乳酸溶液(pH分别为7、6、4)中浸泡一周，Paffenbarger重量法测定各组试件重量改变。

Use k-12 contact angle meter to measure the contact angle of pieces in four groups and do statistical analysis.

用k-12接触角测量仪测量四组试件各自的接触角并进行统计分析。

Lung isolation was with an Arndt wire-guided BB (Cook Critical Care, Bloomington, IN), a Cohen Flexi-tip BB or a Fuji Uni-blocker or with a left-sided DLT (Mallinckrodt Medical, Cornamadde, Athlone, Westmeath, Ireland).

四组的单肺通气装置分别为有导线引导的 Arndt 支气管阻塞器（ Cook Critical Care ，伯明顿，印第安纳州）、头部可旋转的 Cohen 支气管阻塞器、 Fuji 单腔支气管阻塞器（ Fuji Systems ，东京）和左侧双腔支气管导管（ Mallinckrodt Medical ，克纳梅德，阿斯隆，韦斯特米斯郡，爱尔兰。

Then according to different concentration of serum, we divide the blood serum into four sets, 2.5%, 5%, 10% and 20%.

根据血清添加量的不同，将上述方法获取的血清分为2.5％，5％，10％和20％四组。

Then, the blood serum of rat was obtained.

根据血清添加量的不同，将上述方法获取的血清分为2.5％，5％，10％和20％四组。

Langdon often wondered how many modern card players had any clue that their four suits—spades, hearts, clubs, diamonds—were Grail-related symbols that came directly from Tarot's four suits of swords, cups, scepters, and pentacles.

兰登常常想，玩纸牌游戏的现代人，有多少人会想到纸牌的四种花色--黑桃、红桃、梅花及方块--是与圣杯有关的符号，并且它们的前身，直接脱胎于占卜纸牌，即印有宝剑、金杯、王杖与五角星形符号的四组牌。

We divided sperm count of infertile men 296 in the latest four years into four groups: 0, 1~5, 6~19 and more then 20 million/ml. The average age (p=.001), concentrations of luteinizing hormone(p=.001) and follicle-stimulating hormone(p=.000) of four groups were statistically significant differences.

研究结果显示，最近四年某教学医院不孕症患者296名，将精子浓度分为0、1~5、6~19及大於等於20 million/ml四组，其年龄（p=。001）、黄体激素（p=。001）及滤泡激素（p=。000）平均值之间均有显著差异。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。