Frequency

GRE 考研

解释

GRE 红宝书

• n. 频率
• ［英］ n. 频率 ( rate of occurrence or repetition of sth)
• ［类］ frequency : pitch / wavelength : color ( 频率决定音高 / 波长决定颜色) 反义词: rarity ( 稀有)

Webster Collegiate

noun (plural -cies)

• Date: 1600
• 1. the fact or condition of occurring frequently
• 2.
  • a. the number of times that a periodic function repeats the same sequence of values during a unit variation of the independent variable
  • b. the number, proportion, or percentage of items in a particular category in a set of data
• 3. the number of repetitions of a periodic process in a unit of time: as
  • a. the number of complete alternations per second of an alternating current
  • b. the number of complete oscillations per second of energy (as sound or electromagnetic radiation) in the form of waves

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