The source model is a low-level model based on a source object, MetadataObject, with a specific structure defined in terms of type, inputs, and outputs.
源模型是基于源对象MetadataObject的低级模型，具有根据type、inputs和out puts定义的特定结构。
As a special consumption group in society, undergraduates show the features and trends of "over, expensive, unique and more" in consumption conception, source, sum, structure and level.
当下大学生作为社会中一个特殊的消费群体，在消费观念、消费来源、消费金额、消费结构和消费层次等方面表现出“超、高、单、多”的特点和趋势。
The installation of level gauge used for urea stripping tower, the structure and forming of radioactive rod source, and the calculation of its approximate linear graduation are described.
介绍了尿素汽提塔液位计的安装方式、棒状源的结构、源的组合形式，及近似线性刻度计算。
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