superposition

重叠, 重合, 叠合

superposition

1. (geology) the deposition of one geological stratum on another

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(classification)

2. (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest

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3. (geometry) the placement of one object ideally in the position of another one in order to show that the two coincide

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4. the placement of one thing on top of another

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