gap in geological record
常见例句
- A geological surface that separates younger overlying sedimentary strata from eroded igneous or metamorphic rocks and represents a large gap in the geologic record.
分隔較年輕的上覆沉積地層與火成巖或變質巖的侵蝕麪的地質界麪，在地質記錄上代表一個大的間斷。
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