Most industrialized countries have legislation in place to limit and control the negative impact that emission of pollutants may have on the environment.
大多高度工业化国家都具有严格的法律条例控制放射性粉尘和气体对环境所造成的污染。
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After successful implementation of the emissioncontrol on on-road motor vehicles such as automobiles, China started to follow the legislation process on off-road mobile equipment in Europe and USA.