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恒温培养箱是医院化验科作为细菌培养的重要设备之一。代号为PYX—DHS－500X650型的隔水式电热恒温培养箱是上海跃进医疗器械一厂于1985年2月生产的。该设备电路设计功能简单，操作方便，使用水银温度计作为温度显示。但是在使用中存在一个严重的问题，那就是温度控制传感器的
The constant temperature incubator is one of the important equipments for the bacterial culture of the hospital laboratory. The PYX-DHS-500X650 water-retaining thermostatic incubator was manufactured by Shanghai Yuejin Medical Equipment Factory in February 1985. The circuit design of this device is simple, easy to operate and uses a mercury thermometer as a temperature display. But there is a serious problem in use, that is the temperature control sensor