Among them, legislation by law is the primary link to rule the state by law.

Enlarging the coverage of social insurance is the Key link of the betterment of social security system;

The equipment management in metallurgical enterprises is a key link of increasing the managing efficiency of enterprises.

Creative ability of students is the key link in operating computer.

Choice--the important link in Chinese Teaching;

Some important links of doing a good job on ground forecasting on duty

The three important links on technical application for the road foundation layer of compound consolidated soil

This paper discusses five important links in strengthening the course construction of Chinese in university.

The characteristics of engineering cost and key links for effective control;

Strengthening four key links to promote the developmentof higher vocational education;

The main links of establishing the social responsibility of the enterprises;

That is to promote field audit performance to disclose fraud according to audit procedure and appropriate statute,to emphasis on main links such as yearly audit plan,audit writ,audit analysis and group discussion,to adopt station responsibility system,to strengthen assessment and recording,to look into fault cases, to match responsibility,power and benefit,and so on.