“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	proton spin crisis proton splash proton stream proton synchrotron proton theory of acid and base proton therapy proton transfer proton transfer polymerization proton transfer reaction proton zone proto-oncogene protopanaxadiol protopanaxatriol protophilic solvent protophloem protophobic solvent protophyte proto-planet protoplanet protoplanetary cloud protoplanetary disk proto-planetary nebula protoplanetary nebula protoplanetary system protoplasm

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