In the aspect of equipments, electronic barometer is replaced by Fortin barometer, electronic differential manometer replaces U-shaped manometer, Backman thermometer substitute 1/ 10 thermometer, accumulator tank is used to substitute accumulator bottle, and heating is also improved. 在设备方面,用电子气压计代替福廷式气压计、用电子压差计代替U型压力计、用电子贝克曼温度计代替1/10温度计、用缓冲罐代替缓冲瓶,同时加热方式也进行了相应的改进。