提出一种对模式识别与人工智能系统都适应的生存期模型—树状模型。
A life period model of pattern recognition and artificial intelligence systems-tree structure model is put forward in this paper.
该模型通过允许开发人员创建具有适当生存期的对象来满足这些需求。
The model supports these requirements by allowing the developer to create objects with the appropriate lifetime.
模型需要包含一种机制，将根对象传递给用于存储和检索生存期为RetainThreadGroup或Retain Thread的对象的每个迭代。
The model needs to include a mechanism for passing root objects to each iteration that can be used to store and retrieve objects that have a lifetime of Retain Thread Group or Retain Thread.
外接程序模型的远程处理功能使得生存期管理复杂起来。
The add-in model's remoting capabilities complicate lifetime management.
结果A-NK细胞能显著延长肝癌动物模型的生存期，与LAK细胞比较差异有高度显著性（P<0.01）。
Results A-NK cells could significantly prolong the survival time of the model mice, in comparison to the LAK cells, there was statistically significant difference (P<0.01).
对124名法国患者的进一步研究提示，运用该模型，认为无风险的患者中位生存期为378天，有风险的只有90天。
Study of a further 124 French patients showed that those deemed at good risk using the model, had a median survival of 378 days, compared to 90 days in the poor risk group.
对124名法国患者的进一步研究提示，运用该模型，认为无风险的患者中位生存期为378天，有风险的只有90天。
Study of a further 124 French patients showed that those deemed at good risk using the model, had a median survival of 378 days, compared to 90 days in the poor risk group.
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