目的：分析K物质在大鼠中脑导水管周围灰质中参与痛觉调制的作用，揭示内源性镇痛系统的神经递质机制。
AIM: To analyze the effect of substance K on pain modulation in the periaqueductal gray (PAG) of rats and indicate the neurotransmitter mechanism in endogenous analgesia system.
城市设计导则是城市设计项目编制的核心内容，是城市设计参与城市建设管理的重要途径。
Urban design guidelines are the core of the preparation for urban design project, and are an important way for urban design to take part in the management of urban construction.
毕业后，他开始参与一些影片的幕后制作，包括助理、摄影、副导等工作。
After graduating, he took behind - the - scenes jobs in movie production, including working as an assistant, cinematographer, and assistant director.
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