并列题名：Intellectual property challenges and system innovation arising from 3D printing Intellectual property challenges and system innovation arising from 3D printing 并列题名：Intellectual property system and innovation-driven development Intellectual property system and innovation-driven development 并列题名：Intellectual property sharing and protection in collaborative innovation 并列题名：Intellectual property system and regional industry innovation driving 并列题名：Intellectual property transactions and enterprise innovation performance 并列题名：Intellectual property protection and business innovation