Study on regional industry-university-research collaborative innovation based on triple helix 并列题名：Study on regional industry-university-research collaborative innovation based on triple helix Study of American industry-university-research cooperative innovation mechanism 并列题名：Study of American industry-university-research cooperative innovation mechanism Study on the industry-university-research collaborative innovation mechanism of industrial characteristic universities Research on the construction of industry - university - research collaborative innovation system Regional industry-university-research collaboration 并列题名：Regional industry-university-research collaboration 并列题名：Research on the construction of industry - university - research collaborative innovation system