危险、危险物  danger

致跌危险因素  Assessment

保险[危险]之开始  terminus a que

保险[危险]之终止  terminus ad quem

保险危险  insurance risk

冒险危险  Hartley oscillator

危险危害因素  dangerous and hazardous factor

板级跌落  board-level drop

包装跌落冲击  package drop test

不对称跌落  asymmetic dips

持续电压跌落  continuous voltage sags

弹性跌落急水槽  flexible dropchute

导频跌落  pilot fall down

导线跌落  cable dropping

低电压跌落  low dropout

低频跌落  Drop at low frequency

电网电压不对称跌落  asymmetric grid voltage drop

电网电压跌落  grid voltage sag; grid voltage dip; grid voltages dip; grid voltage drop; grid voltage sags

电压跌落  voltage dip; voltage sag; Voltage drop; voltage dips; voltage sap; voltage collapse; SAGS; voltage-dip; voltage slop; voltage-sag; cluster analysis for variables; Voltage sags; voltage sage; voltage dip sag; Voltage decline

电压跌落比  voltage drop ratio