“Rule ‘Chi’ of Fifteen Grades”的概念、定义、翻译、参考文献-科学参考

单词	Rule ‘Chi’ of Fifteen Grades
释义	Rule ‘Chi’ of Fifteen Grades Encyclopedia 工学中国古代度量衡史释 Rule ‘Chi’ of Fifteen Grades十五等尺唐代李淳风以周尺为标准，将东周至隋各种尺分成的十五等排列。考证其间尺度的变化。
随便看	Tracking and Data Relay Satellite tracking and data relay satellite system tracking and data-relay satellite system tracking and data relay satellite system, TDRSS tracking and data relay satellite system，TDRSS tracking and driving mechanism tracking and firing control tracking and identification tracking and observation tracking axis tracking camera tracking condition prediction tracking control tracking counter tracking encoded theodolite tracking error tracking IR-radiometer tracking lidar tracking loop tracking mode tracking performance tracking point tracking power tracking shot tracking system

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