卷紧卷齐
uniform and tight winding
1921年紧急关税法案
Emergency Tariff Act of 1921
ATP紧急制动触发曲线
ATP emergency brake triggering curve
ESD紧急停车系统
ESD emergency stopping system
UPS紧急供电方案
classical swine fever virus shimen strain
闭环紧急控制
Closed-loop emergency control
避免紧急危难
to avert an imminent crisis
乘客紧急报警子系统
passenger emergency alarming subsystem
乘员紧急重返载具
crew emergency reentry vehicle