frequencies

英 ['frɪkwənsɪz] 美 ['frɪkwənsɪz]

• n. 频率
• 名词frequency的复数形式.

英英释义

名词 frequency:

1. the number of occurrences within a given time period

2. the ratio of the number of observations in a statistical category to the total number of observations

3. the number of observations in a given statistical category

例句

用作名词 (n.)

1. At some frequencies, it can penetrate walls.
   在一些频率，它能穿透墙壁。
2. Confined waves have definite frequencies.
   被限制的波具有确定的频率。