percussion cap的用法和樣例：
例句
用作名詞 (n.)
- His attempts to find a safe way to handle nitroglycerin resulted in the invention of dynamite and the blasting cap.
他試圖找到一種處理硝化甘油的安全方法，結果發明了黃色炸藥和雷管。 - We shall start the two blocks from rest at the center point of the track and force them apart by exploding the cap with an electric spark.
開始時，將兩個滑塊靜止置放在槽的中心，然后利用電火花引爆雷管，迫使它們分開。
