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单词 superposition
释义

WordReference Random House Unabridged Dictionary of American English © 2024
su•per•po•si•tion  (so̅o̅′pər pə zishən),USA pronunciation n. [Geol.]
  1. Geologythe order in which sedimentary strata are superposed one above another. Cf. law of superposition. 
  • French superposition; see super-, position
  • 1790–1800

Collins Concise English Dictionary © HarperCollins Publishers::
superposition /ˌsuːpəpəˈzɪʃən/ n
  1. the act of superposing or state of being superposed
  2. the principle that in any sequence of sedimentary rocks which has not been disturbed, the oldest strata lie at the bottom and the youngest at the top
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