ENGINEERING MATERIALS??工程材料【中英文对照】TYPES OF MATERIALSMaterials may be grouped in veral ways. Scientists often classify materials by their state: solid, liquid, or gas. They also parate them into or
关键⽅法/*** Helper for opening a connection to a camera with the given ID.** @param cameraId The unique identifier of the camera device to open* @param callback The callback for the camera. Must not be n