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The DNA injected is taken up into the mature oocytes and exists as an unintegrated extrachromosomal array, which segregates randomly and can be lost.

注射的DNA被成熟的卵细胞吸收，以染色体外遗传物质的形式存在。

Fifty 6-month-old unmated female SD rats were randomly divided into 5 groups: sham operated group, ovariectomized and treated with estrogen group, ovariectomized and treated with propranolol group, ovariectomized and treated with both estrogen and propranolol group, ovariectomized and treated with placebo group .

将50只健康雌性未交配6个月龄SD大鼠随机分为5组：①假手术组。②去卵巢后雌激素治疗组。③OVX后普萘洛尔治疗组。④OVX后雌激素+普萘洛尔治疗组。⑤OVX后安慰剂组。

In the laboratory,unmated females were placed with randomly chosen males to determine whether,given the opportunity,females would be found mating with the largest available males. I exposed amplexing pairs to other males to determine if larger or smaller males would displace amplexing males.

在实验室内，令未交配雌体选择随机选出的雄体，观测雌体是否与最大的雄体交配；将抱对的蛙暴露于其它雄蛙，观测其它较大或较小的雄蛙是否取代已抱对的雄蛙。

In this paper, a new method of learning Bayesian network structure with missing data is presented. First, unobserved data are randomly initialized.

针对这些问题，建立了一种新的具有丢失数据的贝叶斯网络结构学习方法。

Methods A total of 60 adult female SD rats weighing about 340g were randomly allocated into 3 equal groups: unoperated control group (n=20), sham-operated group (n=20) and ovariectomied group (n=20). Immunohistochemical methods were used to determine ER-αand ER-βin superficial and deep compartments in the uterus and vagina.

60只成年SD雌性大鼠随机分为正常组、假手术组、去势组，每组20只。8周后处死大鼠，分离摘取子宫、阴道，进行ERα、ERβ免疫组织化学染色和mRNA半定量RT-PCR检测。

Methods:Unsexed 7-day-old Wistar rats were used as research subjects,and randomly divided into 5 group: the HIBD group(n=12), the HBO early-treated group(n=12), the HBO late-treated group(n=8), the sham operation group(n=12) and the control group(n=6).The HIBD model pups were subjected to unilateral left carotid artery ligation followed by 2h of hypoxia(8%O2 at 37 degree C).

新生7日龄Wistar大鼠为实验动物，雌雄不限，采用结扎左侧颈总动脉后通8%低氧的经典方法制作大鼠缺氧缺血性脑损伤模型，并随机分为HIBD组(n=12)、HBO早治组(n=12)、HBO晚治组(n=8)，假手术组(n=12)，空白对照组(n=6)。

Methods:Unsexed SD rats were randomly divided into shamming operation group and HIBD group.Rat models of acute brain hypoxic-ischemic were established.The expression of IL-1,IL-6 and IL-8 mRNA at days 1,3 and 7 respectively after injection was measured by rt-PCR method.

通过结扎左颈总动脉致大鼠脑急性缺血，后给8%氧气+92%氮气的混合气体致脑急性缺氧，建立大鼠脑急性缺血缺氧模型，在3个时相点采用rt-PCR方法测定假手术组、HIBD组脑组织中IL-1、IL-6和IL-8 mRNA含量变化。

To establish the upper control limit for formaldehyde residue in textile matrix in the process of risk management, content of formaldehyde of textile samples collected randomly in domestic market was determined.

为获取纺织品风险管理工作中甲醛残留浓度控制上限，随机抽取国产织物样品并对其甲醛含量进行测定。

100 patients of kidney and ureter were divided into 2 groups randomly-CESA group and CEA group.

2006年1月至2007年8月间，对100例肾和输尿管结石接受PCNI术患者的麻醉方法随机分为CSEA组和CEA组，每组各50例。

Methods 58 patients with chronic urticaria were randomly divided into experimental group and control group, 29 cases in each group.

将慢性荨麻疹患者58例，随机分为实验组和对照组，每组各29例。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。