surficial

In many porphyry copper deposits, additional enrichment of the metal has been caused by surficial weathering.

在许多斑岩铜矿矿床中, 地表风化使得金属铜进一步富集.

辞典例句

However, it had some limitation in partial deformity of surficial not better than the 2 - D images.

但有其一定的局限性,对部分体表畸形检出不及二 维 探头.

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