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DSB Direct Satellite Broadcast 直接卫星广播 DSB Double SideBand 双边带 DSBRC Double SideBand Reduced Carrier 双边带减幅载波 DSBSC Double SideBand Suppressed Carrier 双边带抑制载波
Charlotte climbed to a point at the top of the left hand side of the web. 夏洛爬上网顶左边。 Swinging her spinnerets into position, she attached her thread and then dropped down. 它把它的吐丝器晃到位,伴着丝往下送。 As she
The eight Strategic and Economic Dialogue kicks off in Beijing today (Monday), and senior Chinese and US officials gather to discuss a wide range of economic issues -- from macroeconomic policies to industrial overcapacity and trade disputes. Experts
vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone
vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone