单词	iconometer
释义	iconometer noun ico·​nom·​e·​ter ˌīkəˈnämətə(r) 1 : an instrument for determining the distance of an object of known size or the size of an object at known distance by measuring the image of it produced by a lens of known focal length 2 a : an instrument that determines the proper objective to be used in taking a picture of given size from a given standpoint and that consists of a diopter and an open rectangular frame sliding on a graduated rod b : a direct viewfinder having a metal frame Word History Etymology International Scientific Vocabulary icon- + -meter
随便看	propellor propellors propelment propels propenales propenals propend propended propendent propending propends propenes propenoates propenoic acid propenols propenonitriles propense propension propensities propensity proper proper adjective proper fraction proper motion proper noun

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