这对环保也会很有利，能节省燃油，减轻交通阻塞，减少空气污染，还可用作公路扩建的替代办法。
This could prove to be an environmental boon as well, saving fuel, reducing traffic jams, decreasing air pollution, and serving as an alternative to highway expansion.
追捧Volt的人津津乐道的一个事实是：Volt能用电行驶35英里后，平顺地切换到汽油机模式，由此能节省燃油，减少温室气体排放。
Volt enthusiasts like to recite the fact that the Volt can go 35 miles on battery-power and then shift seamlessly into gasoline-engine mode, saving on gas and reducing emissions of greenhouse gases.
虽然，更高的燃油效率能节省美国人的经济支出，少驾车也有利于改善美国的空气质量，但这对美国的高速公路和公共交通系统却可以说是一种灾难。
While better fuel-efficiency is good news for Americans' wallets and less driving good for the country's air, for its highways and mass-transit systems, it is something of a disaster.
虽然一旦太阳能发电站架设了就需要维护和修理但是 作为原材料的阳光却是永远免费的，如此能持续节省燃油。
Once solar power plants are installed, they must be maintained and repaired, but the price of sunlight is forever free, duplicating those fuel savings year after year.
他们将在6万吨的货轮上放上能产生40千瓦电力的太阳能面板，预计能为柴油引擎节省约6.5%的燃油。
The panels will be placed atop 60,000 ton car carriers being used by Toyota Motor Corp, and save up to 6.5% of fuel oil normally used in powering the large diesel engines.
他们将在6万吨的货轮上放上能产生40千瓦电力的太阳能面板，预计能为柴油引擎节省约6.5%的燃油。
The panels will be placed atop 60,000 ton car carriers being used by Toyota Motor Corp, and save up to 6.5% of fuel oil normally used in powering the large diesel engines.
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