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国家测量基准
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国家测量基准
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国家测量基准
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national measurement primary standard
国家测量基准
为了定义、实现、保存或复现量的单位或一个或多个量值,用作参考的实物量具、测量仪器、标准物质或测量系统。又称国家计量基准或国家基准。
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area theorem
area theory
area under a curve
Area Under Curve
area under curve
area under the curve
area velocity
A rebellion against subdued army
areca
areca husk
arecane
arecanut yellow leaf
areca peel
areca seed
Arecibo Legacy Fast ALFA Survey
Arecibo Observatory
Arecibo Pulsar
Arecibo radio telescope
arecoline
A Record about Navigation Routes
A Record of Ancient Seals
A Record of Calligraphers and Painters in Fujian: From the Tang Dynasty to the Qing Dynasty
A Record of Calligraphic Works and Paintings at the Guoyun Chamber
A Record of Calligraphies and Paintings Collected by Han Shineng
A Record of Calligraphy and Painting at the Airiyin Studio
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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