burning duration meaning in English

燃烧持续时间

Explosives for civil uses - detonating cords and safety fuses - determination of burning duration of safety fuses
民用爆炸物.导爆索和保险引信.测定保险引信的燃烧持续时间
Explosives for civil uses - detonating cords and safety fuses - part 12 : determination of burning duration of safety fuses
民用炸药.引爆索和保险引信.第12部分:测定保险引信的燃烧时间
Explosives for civil uses - detonation cords and safety fuses - part 12 : determination of burning duration of safety fuses ; german version en 13630 - 12 : 2002
民用爆炸物.引爆线和安全引信.第12部分:安全引信燃烧