Of the criteria adopted in 1973 for determining the noise emission standard for pump rooms in buildings 在一九七三年厘定大泵房发出噪音标准的准则为何
2.
Noise emission from motor vehicles including motor cycles is under control and has to meet specific noise emission standards for registration purpose 汽车包括电单车发出的噪音须受管制，必须符合指定的噪音标准才可获登记。
