echo logical
基本释义
回波逻辑的
实用场景例句
历史研究
During the Civil War, guncotton was experimented with for naval mines.
在内战期间，火棉被用于实验性地制造海军水雷。
学术讨论
The chemical properties of guncotton were thoroughly analyzed during the 19th century.
19世纪，人们深入分析了火棉的化学性质。
科学实验
Guncotton, highly explosive, was used as a propellant in early firearms.
火棉，是一种高度爆炸性的物质，曾用于早期火器的推进。
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