You must pay attention to the working temperature of the machine. 你们必须注意机器的工作温度。
The maximum operating temperature is directly related to the heat treatment process used in manufacturing components. 最高工作温度与制造元件所用的热处理工艺直接有关。
Though the heat produced convection and further blurring, it was the only way to keep the camera at a reasonable operating temperature for an extended period of time. 尽管热能产生对流并且让影像更加模糊,但只有这样才能让相机在长期曝光拍摄中有一个合适的操作温度。