三轮汽车和低速货车用柴油机排气污染物排放限值及测量方法（中国I、II阶段）
Limits and measurement methods for exhaust pollutants from diesel engines of tr-wheel low-speed goods vehicles

2005-05-30

三轮汽车和低速货车加速行驶车外噪声限值及测量方法（中国I、II阶段）
Limits and measurement methods for noise emitted by accelerating tri-wheel and low-speed vehicle

2005-05-30