长江三角洲 Yangtze River delta
长期共存、互相监督、肝胆相照、荣辱与共 long-term coexistence, mutual supervision, sincere treatment with each other and the sharing of weal or woe
长线产品 product in excessive supply
厂长经理负责制 the factory director (manager) responsibility system
畅通工程 “Smooth Traffic Project”