英语词汇“frequency primary standard”的翻译、意思、用法、释义-英汉汉英词典

单词	frequency primary standard
释义	frequency primary standard频率原级标准frequency primary standard頻率原級標準計量學名詞
随便看	vacuum deaerator vacuum debinding vacuum decarbonizing vacuum decarburization vacuum decreasing rate vacuum degasser vacuum degassing vacuum de-gassing process vacuum degassing process vacuum degree vacuum degree of centrifugal chamber vacuum dehydration vacuum dehydrator vacuum deoxidation vacuum deposited coating vacuum deposition vacuum desiccator vacuum detector vacuum diagram vacuum diaphragm capsule vacuum diffusion bonding vacuum diffusion pump vacuum diffusion welding vacuum dilatometer vacuum diode