pyrotechnic device meaning in Chinese

信号发射器
烟火装置

Manufacture of firecrackers and other pyrotechnic devices
10 、制造爆竹和烟花
Road vehicles - connectors for pyrotechnic devices - connection interface between pyrotechnic device and the beam connector
道路车辆.点火装置用连接器.点火装置和梁式连接器之间的连接界面
An initial check of the spacecraft showed that several pyrotechnic devices failed to fire and deploy the chutes , but the reason for the multiple failures was unclear , andrew dantzler , nasa solar system division director , said
美国国家宇航局太阳系分部负责人安德鲁?丹泽尔说，对返回舱的初步检查显示几个点火装置点火失败，导致降落伞未能打开，但是导致重大失败的原因尚不清楚。