Accidents of secondaryfire explosion caused by improper command or fire suppression technology often occurred during the suppression of chemical fires.
在扑救化工火灾中，因指挥、战术不当等引起二次爆炸伤人的事故。
2
Dozens of cars caught fire, causing a string of secondary explosions.
数十辆汽车着火并引发了一连串的二次爆炸。
3
Fire Safe - Secondary metal-to-metal seal ACTS as backup if primary seal is destroyed by fire.