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单词
SI
释义
SI
Encyclopedia
医学
安全指数
释
safety index; SI
安全指数
以药物的5%致死量()与95%有效量()的比值来衡量药物安全性的指标,即。
理学
对称不稳定
释
symmetric instability; SI
对称不稳定
中尺度天气系统发生发展过程中的一种动力不稳定。是大气运动在垂直方向上是对流稳定的和水平方向上是惯性稳定的情况下,作倾斜上升运动时仍然可能发生的一种不稳定大气现象。
Physics
>力学和理论力学>基本概念>释义
international system of units, SI
国际单位制
>附录>释义
SI基本单位
>附录>释义
SI词头
>附录>释义
具有专门名称的SI导出单位
Astronomy
SI
全称:international system of units。国际单位制
Chemistry
>分析化学>标准物质>释义
international system of units (SI)
国际单位制
>化学生物学>化学生物技术>释义
secondary ion (SI)
二次离子
随便看
International Experience Design Committee
International Exposition
international express mail service
International Extreme-UV Hitchhiker
International Federation for Information and Documentation
International Federation for Systems Research
International Federation for the Promotion of Mechanism and Machine Science
International Federation for the Theory of Machines and Mechanisms
International Federation of Bodybuilders
International Federation of Festival Organizations
International Federation of Film Archive
International Federation of Film Producers Associations
International Federation of Freight Forwarders Associations
International Federation of Gymnastics
International Federation of Heat Treatment and Surface Engineering
International Federation of Journalists
International Federation of Library Associations and Institutions
International Federation of Musicians
International Federation of Nematology Societies
International Federation of Operational Research
International Federation of Photographic Art
International Federation of Physical Education
International Federation of pigeons
International Federation of Prestressing
International Federation of Reproduction Rights Organizations
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