准备把星河科研社特製的32" f/3杜普森反射镜原有的铝合金桁架，更换为碳纤维桁架，更坚固、更轻量，也更容易安装与拆卸。

Replacing the existing aluminum truss on Galaxy Scientific Group custom-built 32" f/3 Dob with carbon fiber, stronger, lighter, and easier to set up and disassemble.