percussion cap
常见例句
- His attempts to find a safe way to handle nitroglycerin resulted in the invention of dynamite and the blasting cap.
他試圖找到一種処理硝化甘油的安全方法，結果發明了黃色炸葯和雷琯。 - 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，然後利用電火花引爆雷琯，迫使它們分開。 返回 percussion cap