normative reference data 正常参考值
After the establishment of information model, business model, data extraction and analysis of the yuan's stage, the formation of the normative data and business norms.
经过信息模型建立、业务模型建立、数据元的提取与分析阶段,形成了数据规范与业务规范。
参考来源 - 食品安全生产监管数据元管理系统设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
To facilitate such trials normative data on age-appropriate vision tests need to be available and a consensus reached regarding the definition of amblyopia.
还需要有助于建立标准规范的研究，包括适当视力检查的年龄，以及对弱视的有效及一致性的定义。
Objective to observe the cardiac structures of the normal fetuses between 11 + 0 to 14 + 6 weeks' gestation for obtaining the normative data of the gestational age.
目的对妊娠11 + 0 ~ 14 + 6周正常胎儿心脏结构进行观察，获得该孕周内正常胎儿心脏的生理参数。
Normative data suggests that, before 30 weeks, accelerations of 10 bpm sustained for 10 seconds are oberserved more commonly than accelerations of meeting the 15bpm, 15 second-criteria.
依据标准数据，对于孕不到30周的胎儿，更常见的做法是按每10秒增加10次心跳的标准进行观察，而不是按每15秒心跳增加15次为标准。
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