求翻译：并陆续颁布了养老、医疗、工伤、社会福利等法规政策。社会福利等法规政策。标志着我国社会保障制度的正式开始。是什么意思？

And has promulgated a pension, health care, work injury, social welfare and other regulations and policies. Social welfare policies and other regulations. China marked the official start of the social security system.

It has successively promulgated old-age pension, medical care, work injuries, social welfare, and other regulations and policies. Laws and regulations such as social welfare policy. marked the official beginning of our social security system.

And promulgated one after another has cared for the aged, laws and regulations policies and so on medical service, injury on job, social welfare.Laws and regulations policies and so on social welfare.Symbolizes our country social security systems official start.

And successively promulgated the pension, health care, industrial, social welfare, regulation and policy. Social welfare and other laws and policies. Marked the beginning of formal social security system in China.

And has promulgated a pension, health care, work injury, social welfare and other regulations and policies. Social welfare policies and other regulations. China marked the official start of the social security system.