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National Science Digital Library of American
释义
National Science Digital Library of American
Encyclopedia
管理学
数字保存项目
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National Science Digital Library of American; NSDL
美国国家科学数字图书馆
由美国国家科学基金会(NSF)创建的,对科学、技术、工程和数学(STEM)的高质量数字资源进行有效组织并提供服务的示范性数字图书馆。
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hydraulic structure engineering
hydraulic support
hydraulic system
hydraulic system flight test
hydraulic system ground test with an aircraft
hydraulic system pressure control
hydraulic tappets
hydraulic-test
hydraulic throttle valve
hydraulic transients
hydraulic transmission for diesel locomotive
hydraulic transmission system
hydraulic transport
hydraulic tube
hydraulic tube fittings
Hydraulic Tunnel in Ancient China
hydraulic turbine
hydraulic valve
hydraulic vibration oil production technique
hydraulic winch
hydraulis
hydrazide
hydrazimethylene
hydrazimethylene; diaziridine
hydrazine
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。
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