短语词组短語firing g order 放砲次序FO Firing Order 點火順序firing order test 點火順序檢查rocket -firing order 火箭發射程序engine firing order 發動機發火次序firing order of cylinder [機]汽缸發火次序firing order sequence 點火順序alternated firing order 交錯發火順序 返回 firing order