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就设备材质、电路设计及工程遗留问题等方面内容，对如何提高沪杭线移频自动闭塞设备的稳定性提出了意见和改进措施。
On the equipment material, circuit design and engineering issues left over, how to improve the stability of the Shanghai-Hangzhou line frequency-shifting automatic blocking equipment put forward opinions and improvements.