Related terms:
jiao yu
multistage rocket
liu ji
song yingxing
wujing zongyao
land mines
steel wheel
jade burial suit
mine fields
liubo
international campaign to ban landmines
bronze cannon
foxtail millet
fire lance
gunpowder weapons
chain pump
fire arrows
counterweight trebuchet
Wikipedia sources:
Huolongjing
List of Chinese inventions
Jiao Yu
Land mine
Song Yingxing
14th century
Context for words:
huolongjing
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