求翻译：2002年中国的医疗改革正在进行中，覆盖城镇居民的主要医疗保障措施主要包括国家或单位的公费医疗、大病统筹医疗、自费购买商业医疗保险等。是什么意思？

In 2002, China's health care reform in progress, covering the main urban primary health care measures, including the country's public health unit, serious co-ordination of medical, commercial privately purchased health insurance.

正在翻译，请等待...

In 2002 China's medical reform was being carried on, covered the cities inhabitant's main medical safeguard measure mainly to include national or unit's public health services, the big sickness overall plan medical service, the own expense purchase commercial medical insurance and so on.

In 2002 China's health care reform is in progress, covering primary medical security measures of urban residents include country or units of free medical care, comprehensive arrangement for serious disease, such as medical, privately purchased commercial medical insurance.

In 2002 China's health care reform is in progress, covering primary medical security measures of urban residents include country or units of free medical care, comprehensive arrangement for serious disease, such as medical, privately purchased commercial medical insurance.