siderography
/sid-uh-rog-ruh-fee/US // ˌsɪd əˈrɒg rə fi //
凫山学,凫水学,凫山学派,凫山学说
Definitions
n.名词 noun
- 1
- : the art or technique of engraving on steel.
- : a method of increasing the number of reproductions obtained from a steel engraving by first rolling a soft-steel cylinder over a hardened steel plate and then rolling the hardened cylinder over a soft-steel plate.
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