The two choices of new engine could yield fuel savings of 15% (airlines consider anything above 2% to be meaningful), and will reduce carbon emissions and engine noise.

新引擎的两种选择可以节油15%(航空公司认为节油率超过2%才有意义)，并减少碳排放以及引擎噪音。

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To see how changes in source capacitance can affect noise gain, let's again refer to the simplified ammeter model in Figure 2-15.

为了了解源电容如何影响噪声增益，再来看一下图2-15中的简化的安培计模型。

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Vortex air compressor features: 1, high reliability. 2, noise is extremely low. 3 and the energy consumption minimum. 4, maintenance costs minimum.

涡旋空气压缩机的特点：1、可靠性高。2、噪音极低。3、能耗最低。4、维护费用最低。

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It has Burr-Brown 2 Channel low-noise Op Amp, ELNA Audio Grade Capacitor and a R-core linear power supply - doesn't mean that much too you?

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Besides being almost as thin as a credit card (not really), this award-winning ultracompact boasts a pretty impressive set of features, including a maximum ISO of 4000 (no word on noise at that level, however), 2.5-inch LCD, and Super Shake-Free image stabilization.

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Overall, nearly 700 people, or 13.2 percent of the sample, had noise-induced hearing loss in Djalilian's study.

CNN: Men, convertible drivers at higher risk for hearing loss