... Reduce Background Noise 降低背景噪音 Reduce Noise And Emissions 减少噪音和排放 Reduce ambient room noise 减少室内噪声 ...
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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。
The fuel an conserve energy, reduce the concentration of co, HC of exhaust emissions and the noise emission, so the environmental condition is improved.
验证了该燃料不仅节约能源，而且减少了废气排放中的CO、HC污染物，并降低了噪声。
Each industrial sites have been routine check to reduce the noise pollution, dust emissions and wastewater.
每个工业场地都经过常规检查以降低噪音污染，粉尘排放和废水排放。
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