习服（acclimation）俗称“服水土”。是一种生理现象。指机体对某种特殊环境条件产生的适应。机体内部结构和机能为顺应环境而发生的某种变化。分自然习服和人工习服。
6. The mtDNA copy number increased during the hypoxia acclimatization, but it decreased in the samples that had hypoxia adaptation.
6.在高原习服过程中mtDNA拷贝数增加,获得高原适应后mtDNA的拷贝数又降低。
参考来源 - 线粒体基因组与高原习服适应相关性的初步研究·2,447,543篇论文数据，部分数据来源于NoteExpress
第四部分是基于卫星宽带远程环境对学习服务支持系统具体的构建思考。
Part four explores the construction of the Learning Support Services System based on the environment of Satellite Broad Band.
面向对象的方法固然方便，但由于用类对底层 Win32 函数调用进行了封装，它不利于学习服务程序的基本知识。
The object-oriented approach was convenient, but since calls for low-level Win32 functions are encapsulated by class, it is insufficient for learning about the essence of the Services.
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