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中国古代矿冶业
释义
中国古代矿冶业
Encyclopedia
工学
中国古代矿冶业
释
mining and metallurgy in ancient China
中国古代矿冶业
中国古代金属矿产的开采和冶炼活动。主要是金、银、铜、铁、锡、铅、锌、汞八种金属的生产。有关古代矿冶业的文献记载,早期仅有产地而无产量。《新唐书·食货志》首次记载全国银、铜、铁、锡的年收入量。历代文献中的年收入量并不等于年产量,而往往是税收量、征集量、官营矿冶产量等。
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test cycle of internal combustion engine
test data
test data generator
test desk
test desk, test bench
test developing
test documentation
test driven development
test driven development, TDD
test-driven development,TDD
test driver
tested object
test element
test equipment
test equipment team
tester
tester mating design
test fairness
test for abnormal immune response of cell
test for additivity
test for agricultural machinery product
test for amylase in salivary stain
test for coincidence
test for convergence
test for depressor substances in drug
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