英语词汇“d layer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	d layer
释义	D layer noun the lowest region of the ionosphere, characterized by mounting electron and ion density: exists, during the day only, from about 43 to 50 miles (70 to 80 km) altitude. Compare D region. Origin of D layer First recorded in 1930–35 Words nearby D layer DKA, dkg, dkl, dkm, dl, D layer, DLC, D. Lit., D. Litt., DLL, D.L.O. Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for D layer D layer See D region. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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D layer