glacial polish

名词 n.

英文释义

名词 n.
  1. The appearance of rock after having been worn smooth by a passing glacier. uncountable,usually
    — Tenaya Lake was at one time under as much as 2,460 feet of glacial ice that produced a pressure of about 74 tons per square foot and extensive glacial polish (fig. 18).

词形变化

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