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AKASHA
word detail
Advance
sci_hist:advance
A landmark scientific discovery or technological invention (発見/発明).
Advance
landmark
Scientific
Discovery
technological
invention
発見
発明
Agriculture Inv
Writing Inv
The Wheel
Iron Smelting
Geometry Inv
Archimedes Principle
Papermaking
Zero And Place Value
Algebra Inv
Optics Inv
Gunpowder
Magnetic Compass