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单词 emissions
释义
emissions

Chemical Engineering
  • The discharge of materials into the environment emanating from an industrial or domestic source. It includes solids such as particulates, liquids, gases and vapours, and noise. The exhausts from the internal combustion engine in cars and other vehicles gives emissions of particles, water vapour, and carbon dioxide, and other gases.


Economics
  • Substances given off by the activities of people or by productive processes. Emissions may be solid particles or liquids deposited in rivers or the sea, or solid particles and gases put into the atmosphere. Economic policies related to the environment are concerned with emissions which have adverse external effects on people, animals, or plants. Pollution can be reduced in the short run by taxing or restricting activities involving harmful emissions, and in the longer run by research on alternative productive techniques involving fewer or less harmful emissions.


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