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Terms for subject General containing unified | all forms | exact matches only
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unified coarse thread统一标准粗牙螺纹美
unified extra fine thread统一标准特细螺纹美
unified fine thread统一标准细牙螺纹美
unit of unified scale统一标度原子质量单位规定碳同位素 C12 的质量为 12.000amu，由而使 1 amu = 1.6600 x 10-24克; 系 IUPAP 和IUPAC 于1960年前后共同拟订

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