1. 火花塞：sparking plug for internal combustion engine 内燃机火花塞 | sparking plug 火花塞 | sparkled overcoating 闪色大衣呢
2. 火花塞 (美作:spark plug)：indicator blinker 方向指示灯 | sparking plug 火花塞 (美作:spark plug) | insulating tape 绝缘胶带
noun
1. electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
Synonym: spark plug plug