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- thermal noise level 热噪声电平
- There must be a threshold of thermal noise. 必有一个热噪声的门限值。
- Structure of very low noise level. 低噪音结构。
- Noise level shall comply with the EU guidelines. 噪音级别应符合欧盟的指导方针。
- The noise level of air supply unit should be marked on the drawing. 机组要有噪声要求。
- Airflow system maximizes air volume at minimum noise level. 空气动力系统使加热器在最大出风量时将噪音降到最低。
- The quality of urban living has been damaged by excessive noise levels. 城市生活的质量已被过度的噪音所破坏。
- Latest generation speed reducing gear pair (high efficiency, low noise level). 最新一代减速齿轮对(高效,低噪音)
- Regulation on noise levels on board sea-going ship. 海洋船舶噪声级规定。
- Noise level is higher, everyday concessional working hours is shorter. 噪声级越高,天天容许工作时间越短。
- The ultimate noise levels are the same. 最终的噪音水平是一样的。
- As the range increases thermal noise tends to take over as the major source of inaccuracy. 当射程增大时，热噪声将成为一个主要的误差源。
- This charge movement results in noise, which is often called Johnson or thermal noise. 这种电荷的运动产生了噪声，通常称为约翰逊噪声或热噪声。
- Thermal noise counting rate of the EMI 9635 QB type photomeltipliers reduces to 1/4-1/3 of the rate at room temperature. EMI9635QB型光电倍增管的热噪声计数率下降到室温时的1/4－1/3。
- Finally, we applied this modified cascode amplifier to the thermal noise canceling structure to achieve low noise figure and impedance matching. 最后应用这个宽频放大器到热杂讯消除技术架构来设计达到低杂讯与阻抗匹配。
- It is forbidden to manufacture,sell or import automobiles that emit noise beyond the limits set on noise level. 禁止制造、销售或者进口超过规定的噪声限值的汽车。
- The effect of thermal noise, 1/f noise and power substrate noise on the timing jitter and phase noise in VCO is explored. 对VCO中的热噪声、1/f噪声、电源衬底噪声等对输出的影响以及对各种噪声的抑制方法作了详细阐述。
- The proportional navigation (PN) guidance error caused by angular noise (thermal noise) arid glint effect in radar seeker receiver is studied. 摘要研究了雷达导引头接收机中的角噪声（热噪声）以及目标闪烁对比例导引制导精度的影响。
- The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band. 声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。
