机动车辆废气排放标准 motor vehicle emission standard
最高法院将于今年3月决定是否提高燃料效能和车辆排放标准。
In March the Supreme Court will decide whether to raise fuel-efficiency and vehicle-emissions standards.
如果美国一定要利用燃油效率标准来减少车辆排放，那么猛药胜于软药。
If America insists on using fuel-efficiency standards to cut vehicle emissions, then tough ones are better than weak ones.
车辆都必须达到加州的建议标准，排放量减少百分之三十。
Vehicles would have to meet California's proposed standard of a 30 percent reduction in emissions.
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