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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(jié)果發(fā)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(shí)，將兩個(gè)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。