单词 | explosive powder |
释义 | explosive powder Explosive powder manufacturing was an extremely dangerous endeavor at the time, and uncontrolled explosions were frequent. Retrieved from Wikipedia CC BY-SA 3.0 One pound of explosive powder wrapped in paper was pushed into each hole, tamped down, punctured with a sharp needle, and a fuse added. Retrieved from Wikipedia CC BY-SA 3.0 The match heads would burst into flame and ignite the explosive powders. Retrieved from Wikipedia CC BY-SA 3.0 |
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