emergency application meaning in English

紧急应用
紧急制动

Problems of the reserved materials for national defense transportation in emergency application and solutions to them
铁路国防交通储备物资在应急抢险使用中的问题及其对策
Standard test method for evaluating the ignition sensitivity and fault tolerance of oxygen regulators used for medical and emergency applications
医疗和应急设备用氧气调节器的引燃敏感性和耐故障性评价的标准试验方法