Effects of acoustic parameters of power ultrasound on wastewater treatment efficiency;
功率超声的声学参数对废水处理效果的影响
Appliance of power ultrasound in separation & purification;
功率超声在分离纯化中的应用
Effect of power ultrasound on induction of Stachys sieboldii leaf callus and growth of axillary bud;
功率超声对地灵叶片愈伤组织诱导和芽生长的影响
Application of Kalman filter to measurement of sound power for medical ultrasonic diagnostic equipment;
Kalman滤波器在医用超声诊断设备声功率计量中的应用
Determination of scanning parameters during measurementon sound power of quadrupole source by scanning sound intensity method;
扫描声强法测量四极子声源声功率时参数确定
Application of acoustic fields reconstruction for sound power prediction
利用声场重构预估声源辐射声功率
Determination of sound power level for noise emitted by woodworking machinery
GB/T3770-1983木工机床噪声声功率级的测定
Determination of sound power levels of noise emitted by household electrical appliances
GB/T4214-1984家用电器噪声声功率级的测定
Determination of sound power levels of noise emitted by metal cutting machine tools
GB/T4215-1984金属切削机床噪声声功率级的测定
Determination of sound power level for noise emitted by reciprocating pump--Engineering method
GB/T9069-1988往复泵噪声声功率级的测定工程法
Determination of sound power levels of internal combustion engines noise-Quasi-engineering method
GB/T1859-1989内燃机噪声声功率级的测定准工程法
Determination of sound power level for noise emitted by centrifuger separator and filter - Engineering method
GB/T10894-1989分离机械噪声声功率级的测定工程法
Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using a reference sound source
GB/T16538-1996声学声压法测定噪声源声功率级使用标准声源简易法
Acoustics--Determination of sound power levels of noise sources--Precision methods for anechoic and semi-anechoic rooms
GB/T6882-1986声学噪声源声功率级的测定消声室和半消声室精密法
Study of Upper Frequency Limit and Noise Output Power Characteristics for Microwave Solid State Noise Diodes
微波固体噪声二极管频率上限和噪声输出功率性能的研究
Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 2: Measurement by scanning
GB/T16404.2-1999声学声强法测定噪声源的声功率级第2部分：扫描测量
Acoustics--Determination of sound power levels of noise sources--Requirements for the performance and calibration of reference sound source
GB/T4129-1995声学噪声源声功率级的测定--标准声源的性能要求与校准
Identification of Noise Sources on Air-conditioner Unit and Sound Power Measurement with Air-flow;
空调机噪声源识别与气流下声功率测量
Noise limits for small and medium power diesel engines
GB14097-1993中小功率柴油机噪声限值
The concept of" equivalent noisy power spectral density" is introduced in this paper.
文中提出等效噪声功率谱密度的概念。
Study on Control Technique for Noise of High Power Diesel Engines in Mine
矿山大功率柴油机噪声控制技术研究
Acoustics--Determination of sound power levels of noise sources--Precision methods and engineering methods for reverberation rooms
GB/T6881-1986声学噪声源声功率级的测定混响室精密法和工程法
Acoustics--Determination of sound power levels of noise sources--Guide lines for the use of basic standards and for the preparation of noise test codes
GB/T14367-1993声学噪声源声功率级的测定使用基础标准与制订噪声测试规范的准则
The first term of the integrand represents the contribution to the error power due to noise.
被积函数的第一项表示噪声对误差功率的影响。