3.1 Data collection
In this study, we send questionnaires to the teams of 160 high-tech manufacturing enterprises in the eastern and central parts of China. We use the snowball sampling method and nomination interpretation method, then each team is asked to report 3-6 partners who have relationships with them. Each team member is asked to answer the questionnaires according to their own situations. Each team appoints a team leader to answer the questionnaires, and then forms the matching questionnaire of team leader with team members. Finally, 132 questionnaire of teams are collected. The effective recovery rate of sample is 82.5%. The result of statistical analysis shows that there are 520 members in tota, they are divided into 132 groups, 50 groups consist of 3 members, and 40 groups consist of 4 members, plus 42 groups consist of 5 members. Most of the team members are technical elities or engaged in research and development work. The demographic characteristics of the team and team members are shown in Table1.