单词	H and D system
释义	H and D system noun : a system for determining the speed of photographic materials that is based on the characteristic curve and related to the inertia of the material Word History Etymology after Ferdinand Hurter and Charles Driffield fl 1890
随便看	bauchles bauchly Baucis bauckie bauckiebird baud baudekin baudekins Baudelaire baudelairean baudelaires baudelairian Baudouin baudrons baudronses bauds bauera baueras bauernwurst bauernwursts Bauhaus bauhauses bauhinia bauhiniae bauhinias

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