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XJJ－4心脏急救监视装置是一台集心电示波系统、除颤器和自动记录仪为一体的心脏急救仪器。各组合单元既可以分散单独使用，又能组合成套完成较复杂的心脏急救工作，所以它广泛地应用于各类医院的急救场合，对此类急救设备的维修，较之一般仪器更加要求准确和迅速。现举二例常
The XJJ-4 Heart Emergency Monitoring Device is a heart emergency device that integrates an ECG oscillometric system, a defibrillator and an automatic recorder. Each combination unit can be used separately and can be combined to complete more complex cardiac emergency services. Therefore, it is widely used in emergency situations in various hospitals. The maintenance of such emergency equipment is more accurate and demanding than the general instruments. rapid. Now take two cases