与此同时，12年间京津、京冀、津冀间协同创新指数的相对差距也在缩小。 从400吨"巨无霸"到大模型 京津冀协同示范效应显现 一台3D打印机、一个化工大模型，背后隐藏着怎样的京津冀科创密码？ 从国内最大金属3D打印机的津冀中试，到全国首个化工安全大模型的京冀共建，京津冀协同创新正加 速演绎"北京研发、天津转化、河北应用"的"创新铁三角"模式。 三地联合攻关破解"卡脖子"技术，用实践诠释科技与产业的深度"化学反应"。 数据显示，2013年以来北京流向津冀技术合同成交额累计超3700亿元，目前形成7个国家先进制造业集 群，协同创新指数年均增长13.1%。 新春伊始，走进天津滨海-中关村科技园，一台高12米、重400吨的庞然大物映入眼帘，这是目前国内最 大的金属3D打印机，能够将20米长的钢板一体成型，主要用于海上浮式平台、油气平台等海洋装备制 造。 这一"巨无霸"的研发单位，是北京理工大学机械与车辆学院。由于北京场地限制无法进行1:1样机试 制，团队最终选择落户天津，完成中试调试。 这不是技术局限，而是智慧分工：北京做能做的，天津做该做的。 更具样本价值的案例，来自化工安全大模型。河北鑫海化工集团有限公司投资850 ...

Group 1 - The core viewpoint of the article highlights the selection of three innovative demonstration scenarios from Cangzhou, showcasing advancements in industrial intelligence, ecological governance, and technological innovation [1][3] Group 2 - The "Smart Refining and Safety Operation Scenario" is implemented by Hebei Xinhai Chemical Group Co., Ltd., which invested 85 million yuan to collaborate with Baidu, Tsinghua University, and Beijing University of Chemical Technology to create the first national chemical safety model [1] - This scenario features core functions such as intelligent Q&A, predictive maintenance, and emergency drills, expanding into eight areas including intelligent loading and unmanned weighing, achieving digital twin modeling for three main production lines [1] - The "Binhai Saline-Alkali Land Microalgae Governance Scenario" addresses high soil salinity and low organic matter issues by utilizing advanced biological remediation technologies, successfully restoring soil and increasing crop emergence rates [2] - The scenario employs a crop rotation ecological cycle model with "desert microalgae + oilseed plants + drought-resistant wheat," achieving "three harvests from one land" by producing food, oil, and forage [2] - The "Advanced Membrane Material Verification Application Scenario" focuses on breakthroughs in membrane material design and synthesis, creating a comprehensive innovation system from membrane design to application, targeting strategic emerging industries [2] - This scenario aims to promote high-performance special separation membrane technology in fields such as hydrogen purification and pharmaceutical wastewater treatment [2][3]