Frequency level, time level, speed level.
频率级别，时间常数，速度级别。
Regularities of pressure on surface with sound pressure level and frequency are also given.
并给出了模型表面压力随声压级及频率变化的规律。
It is essential not to confuse the frequency of a processor with its performance level.
重要的是不要混淆频率的处理器，其性能水平。
Characterized by frequency, level and quality.
通过频率、级别和音质来描述。
Characterized by frequency, level and quality.
通过频率、级别和音质来描述。
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