汽车发动机进排气系统的噪声在发动机总噪声中占有重要分量，因此需要积极采取降噪措施。
The car noise admission and exhaust system of the engine is a very important problem, therefore we must adopt innovative technic to reduce noise.
随着飞机广泛使用的涡轮风扇发动机涵道比的不断提高，风扇噪声在飞机总噪声中占有越来越突出的地位。
As the bypass ratio of turbofan engine is more and more high, fan noise is a more important part to the overall turbofan engine noise.
汽车变速器是汽车的一个重要部件，它的工作噪声是汽车总噪声的重要来源，而且也是其自身质量优劣的重要标志之一。
Gearbox is one of the important parts of automobile, whose working noise is not only the important resource of total noise of automobile but also an important mark of its quality.
对于冲击面为凹面的冲击射流，远场噪声总声压级对喷嘴位置改变非常敏感。
For a jet impinging onto a concave plate, the OASPL of the far-field noise is quite sensitive to position variations of the nozzle.
双人在编程时会发出噪声，满是对子的大房间里总存在着低低的嗡嗡声。
A pair will make noise as they program. A bullpen full of pairs will maintain a continual, low-level buzz.
首先是舰船辐射噪声特征量的提取，包括舰船总声源级的估计和螺旋桨轴频线谱的提取。
The first part is about the features extraction, including the estimation of source level of the ship-radiated noise and the line extraction of the rotation frequency of propeller noise spectrum.
总级联该接收机的噪声系数低至1.4分贝，可以帮助提供室内使用的敏感性增加。
The total cascaded noise figure of this receiver is as low as 1.4 dB that can help provide increased sensitivity for indoor use.
增压机噪声具有频带宽、低频声强烈，且总声级又相当高的特性。
Booster compressor noise has the characteristics of wide frequency band, intense low frequency sound and considerably high total sound pressure level.
模拟结果表明，设计的两种新多米诺电路在同样的噪声容限下有效地降低了动态功耗，减小了总的漏电流，同时提高了工作速度。
The simulation results show that the proposed circuits effectively lower the active power, reduce the total leakage current, and enhance speed under similar noise immunity conditions.
噪声总声级的变化较为复杂，由泡空化状态转换到片空化状态，空化数虽然减小，但总声级会突然降低。
The total noise changes complexly. When the bubble cavitation turns on the sheet cavitation, the total noise will reduce suddenly although the cavitation number becomes smaller.
根据大量的测试结果分析了燃烧室噪声的规律和总声级的预测模型。
The regularities of the combustion chamber noises are analysed based on the numerous measurements obtained, and the predicted models of the total sound pressure level are also given.
通过对实测舰船数据分析估计舰船辐射噪声的总声源级。
The source level of the ship-radiated noise is estimated by analyzing the measurement records from passage ship noise.
本文用爆裂噪声表征总剂量电离辐射（TID）对光电探测器组件的损伤情况。
The burst noise was used to characterize the degradation behavior of photodetector module radiated by the Total Ionizing Dose(TID) in this paper.
在接下来的噪声视频中，我们将会学习如何使用运放噪声模型来估计在不同的运放配置下总的输出峰峰值噪声。
In the following videos discussing noise, we will learn how to use the op amp noise model to predict the total peak-to-peak output noise for different amplifier configurations.
在接下来的噪声视频中，我们将会学习如何使用运放噪声模型来估计在不同的运放配置下总的输出峰峰值噪声。
In the following videos discussing noise, we will learn how to use the op amp noise model to predict the total peak-to-peak output noise for different amplifier configurations.
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