请输入您要查询的字词:
单词
mining and metallurgy in ancient China
释义
mining and metallurgy in ancient China
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。
随便看
admissibility criterion
admissible
admissible category
admissible center
admissible chart
admissible coloration
admissible condition
admissible control
admissible covering
admissible curve
admissible decision
admissible decision function
admissible decision function/rule
admissible decision rule
admissible deformation
admissible distortion
admissible domain
admissible element
admissible error
admissible estimate
admissible estimation
admissible estimator
admissible extremal arc
admissible extremal length
admissible function
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/4/22 22:39:18