“national prototype of the kilogram for checking”的概念、定义、翻译、参考文献-科学参考

单词	national prototype of the kilogram for checking
释义	national prototype of the kilogram for checking Encyclopedia 工学质量计量技术释 national prototype of the kilogram for checking1千克质量作证基准砝码为了监测1千克质量基准砝码的量值是否发生变化而专门设立的复制件。
随便看	amplitude of low frequency fluctuations amplitude of wave amplitude principle amplitude probability distribution amplitude reflectivity amplitude relation amplitude shift keying amplitude shift keying, ASK amplitude-shift keying modulation and demodulation amplitude sine amplitude spectrum amplitude-splittine interference amplitude splitting interference amplitude-splitting interference amplitude spread function amplitude-squeezed state amplitude tangent amplitude transfer function amplitude transformer amplitude transmissivity amplitude transmittance amplitude variation with offset amplitudon amp pad cooling system of livestock house AMPS

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