sound source level

基本解釋

Portable sound source for calibration of Sound level meters and sound measuring system.
的便攜式聲級計和校準聲源聲測量系統(tǒng)。
The calculated results show that strong vibrating source, low gravitational level and sound medium with large density and small sound speed will enhance the levitation ability.
結(jié)果表明，提高聲源強度、降低重力水平或者採用密度大聲速小的氣躰介質(zhì)有利於提高聲懸浮能力。
System hardware circuit audio digital signal source achieve this functions:Sound signals, sound intensity level control, data communications, liquid crystal display, alarm and power.
系統(tǒng)硬件電路包括音頻數(shù)字信號源實現(xiàn)聲音信號産生、數(shù)字聲強級控制、多機數(shù)據(jù)通信、液晶顯示和電源等模塊單元。