- 更多网络例句与正常年龄标准相关的网络例句 [注：此内容来源于网络，仅供参考]
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Methods:We selected a group of 164 healthy volunteers and MRI scan in lumbosacral spine was performed for everyone.We obtained some measurements on MR workstation after exams such as: Antero-posterior diameter of the epidural fat located ventrally and dorsally to the dural sac of S_1 to S_5 level.We obtained mean distances and standard deviation s of all the values and then made a conclusion.
选择164例正常成年人(平均年龄41.4岁)行腰骶椎磁共振扫描，分别测量骶椎各水平前、后硬膜外脂肪的厚度，获得均数及标准差，并以性别、年龄及体重指数分组，进行组间比较及相关因素分析。
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Objective: To develop a normal electrocardiographic QRS wave standard in Chinese population with different ages and sexes.
目的：建立中国人不同年龄和性别正常心电图QR S波标准。
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S and percentile value of QRS wave complex amplitude of 4322 normal electrocardiographic waves were calculated.
本文报道不同年龄和性别几项常用的QRS波群复合振幅正常标准，供诊断参考。
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To discuss mobile period rachitic and the relation with RAI, the author reachs humoral immunity function to have observation to the cellular immunity of 92 AR little patient, sum up an analysis to be as follows now. 1 object and method 1.1 objects rachitic little patient sets 92 mobile period for observation group, diagnose all accord with castigatory of group of coordination of scientific research of countrywide rachitic prevention and cure diagnosed a standard 1980. 92 in male 52, female 40, the age 3 months ~1 year old 48, 1~3 year old 39, 3 years old of above 5. 56 examine as a result normal children is set to contrast group, normal value 50%, among them male 34, female 22, the age 6 months ~3 year old.
为探索活动期佝偻病的免疫状态及和RAI的关系，笔者对92例AR患儿的细胞免疫及体液免疫功能进行观察，现总结分析如下。1对象及方法1.1对象92例活动期佝偻病患儿设为观察组，诊断均符合1980年全国佝偻病防治科研协作组修订的诊断标准。92例中男52例，女40例，年龄3个月~1岁48例，1~3岁39例，3岁以上5例。56例检验结果正常的儿童设为对照组，正常值50%，其中男34例，女22例，年龄6个月~3岁。
- 更多网络解释与正常年龄标准相关的网络解释 [注：此内容来源于网络，仅供参考]
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sexual precocity：性早熟
性早熟(sexual precocity)是指任何一个性征出现的年龄早于正常人群的平均年龄2个标准差,即性征提前出现. 临床上主要依据8岁前乳房发育或10岁前月经来潮来判定女性同性性早熟. 女性性早熟又分为真性性早熟和假性性早熟两类,其中以特发性真性性早熟居多.
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Skeletal age：骨龄
发育年龄又称生物年龄或生理年龄,是指用身体的某些形态、功能、第二性征指标的发育平均水平及其正常变异,制成标准年龄,评价个体的发育状况. 发育年龄有形态年龄、性征年龄、齿龄、骨龄(skeletal age)等四类. 其中最实用、结果最精确的是骨龄.
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age norm：正常年龄标准
age morphology || 年龄形态学 | age norm || 正常年龄标准 | age of catalyst || 催化剂寿命