望远镜，加上其控制装置共重3吨半。
The telescope, plus its controls, weighs three-and-a-half tons.
其控制装置由加工工具、能量传感器、温度传感器、加法器、调节阀、低温液体发生器以及前馈控制器和反馈控制器组成。
Its control device is comprised of processing tool, energy sensor, temp. sensor, addition apparatus, regulating valve, low temp. liquid generator, and forward feed and feedback controllers.
PB 150钢制结构制造于苏格兰，其动力输出装置及控制系统制造并检测于OPT位于美国新泽西州沃里克市和边宁顿市的工厂中。
The PB150's steel structure was fabricated in Scotland, and the power take-off and control system was built and tested at OPT's facilities in Warwick and Pennington in New Jersey, US.
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