“primary standard of line angle”的概念、定义、翻译、参考文献-科学参考

单词	primary standard of line angle
释义	primary standard of line angle Encyclopedia 工学角度计量技术释 primary standard of line angle线角度计量基准统一全国线角度量值的国家标准。又称圆分度基准装置。
随便看	Prentice-Hall Inc. prenylation preoccupation preoiler preon pre open hole completion preoperative autologous blood storage preoperative preparation preorder preorderable group preordered set preordering preorder traversal preoscillation preosseous tissue preovulation preoxidation pre oxidizing agent pre-oxidizing agent pre packing dimension pre-packing dimension prepacking dimension preparacompactness preparating lemma preparation

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