达不到上述排放标准的机动车辆，将不能在中国注册登记（上牌）和投入使用。
Those motor vehicles failing to meet such standards will not be allowed to be registered and used in China.
中国和美国的油效标准多少没那么严格，但既便如此，对大量生产大型车辆和运动型多功能车的汽车生产商来说，要达到这些标准也还是有困难的。
China and the United States have somewhat less stringent mileage standards, although they can still be hard for automakers to meet if they produce a lot of big cars and sport utility vehicles.
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