采用ACERT? 发动机技术，符合排放准则，可实现更高的燃油效率。
Engine Technology to meet emissions guidelines and improved fuel efficiency.
对于空气污染程度仍然很高的国家，尽管它们实施了相关政策来降低空气污染，作为世卫组织准则的一部分，也对之提出了过渡目标，鼓励其逐步缩减排放物。
The WHO guidelines provide interim targets for countries that still have very high levels of air pollution to encourage the gradual cutting down of emissions.
中国要求垃圾焚烧炉所排放的二恶英每立方米不超过一毫微克，欧盟的标准则是这一标准的十分之一。
China requires that incinerators discharge no more than one nanogram of dioxin per cubic metre. The European Union sets a standard that is one-tenth of that amount.
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