Many systems are designed at three primary levels: system, subsystem, and component, as shown in Figure 1.
许多系统是在三个主要层次上设计的:系统、子系统和组件,如 图 1 所示。
2
Health for all is a value system with primary health care as the strategic component.
人人享有卫生保健是一个价值体系,初级卫生保健则是战略内容。
3
The result shows these internal clinics have been playing an important role in primary health care and been an essential component in health services system.