单词 | aftertreatment |
释义 | Word Frequency aftertreatment(ˈɑːftəˌtriːtmənt) noun 1. a. a method or device for reducing harmful emissions from internal-combustion engines before they are released into the atmosphere, for example a filter or a catalytic converter This particular filter, introduced in 2007, will be the only aftertreatment requiredfor heavy-duty engines in 2010. b. (as modifier) an aftertreatment system 2. medicine additional treatment that is given to a patient following an illness or medical procedure 3. textiles a chemical treatment that is applied to a fabric immediately after it has been dyed, in order to make it more colour-fast |
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