level of noise中文是什么意思

• 噪声度
• 噪声级
• 噪音值

• level    n. 1.水平仪，水准仪；水准测量。 2.水平线，水平面 ...
• noise    n. 1.声音，声响。 2.叫喊；嘈杂声，噪音；喧闹声； ...
• level, noise    噪声水平
• noise level    噪声等级; 噪声电平，干扰电平，噪声级; 噪声级噪声电平; 噪声水平; 噪音等级; 噪音阶层; 噪音声级；噪音级别; 噪音声级；噪音水平; 噪音水准
• noise level sound level    噪声值
• acceleration running noise level    加速行驶噪声
• acceptable noise level    容许噪声标准; 容许噪声级; 容许噪音标准; 验收噪声水平
• allowable noise level    容许噪声电平
• ambiance noise level    环境噪声级
• ambient noise level    环境噪声级
• amplitude-modulation noise level    调幅杂音电平; 调幅噪声电平
• automatic noise level control    杂波自动控制
• average ambient noise level    平均环境噪声电平
• back ground noise level    背景噪音电平
• background noise level    背景噪声电产; 背景噪声级
• background-noise level    背景噪声电平; 背噪声级
• cabin noise level    舱内噪音级
• carrier noise level    载波干扰电平; 载波噪声电平
• center value of noise level    噪声级的中值
• channel noise level    信道噪声电平
• circuit noise level    电路干扰电平; 电路噪声电平; 线路噪声电平
• circuit-noise level    电路杂音位准
• community noise equivalent level    地区噪声等效级
• community noise level    地区噪声级
• critical noise level    临界噪声级

• Determination of sound power levels of noise emitted by metal - cutting machine tools
  金属切削机床噪声声功率级的测定
• Method of sound power levels of noise emitted by household sewing machine head
  家用缝纫机机头噪声声功率级的测试方法
• The study of worker ' s personality trait due to exposure to high levels of noise
  强噪声对作业人群个性特征影响的研究
• Engineering method for the determination of sound power levels of noise sources using sound intensity
  根据声音强度测定噪声源声功率级的工程方法
• Acoustics - determination of sound power levels of noise sources - guidelines for the use of basic standards
  声学.噪声源声强级的测定.基础标准用指南
• Acoustics - determination of sound power levels of noise sources - guidelines for the use of basic standards
  声学.噪声源的声能级的测定.基础标准使用导则
• Acoustics - determination of sound power levels of noise sources using sound pressure - comparison method in situ
  声学.声压法测定噪声源的声功率级.现场比较法
• Acoustics - determination of sound power levels of noise sources using sound pressure - comparison method in situ
  声学.用声压法测定噪声源的声强级.现场对比法
• Acoustics - determination of sound power levels of noise sources using sound intensity - part 2 : measurement by scanning
  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 - precision methods for anechoic and semi - anechoic rooms
  声学噪声源声功率级的测定消声室和半消声室精密法