礦層的英文：
ledge
manto

參考例句：
  • "a deposit, as of ore, parallel to local stratification."
    平行于局部地層的沉積物,如礦層。
  • Knowledge of the occurrence of chromite deposits is likewise incomplete
    對(duì)于鉻鐵礦礦層產(chǎn)狀的了解同樣是不完整的。
  • The country is level and it is not easy to follow the magnetite seams continuously
    地面是水平的，不容易連續(xù)地追蹤此礦層。
  • Seams in the anorthosite series are only intermittently exposed
    斜長(zhǎng)巖組中的礦層僅斷續(xù)出露。
  • The Main Chromitite Seam and the Merensky Reef do not outcrop well
    主鉻鐵巖礦層及麥侖斯基礦層出露不好。
  • The chromite deposits in the Muskox Complex occur only in feldspathic peridotite
    在穆斯科克斯雜巖體中，鉻鐵礦礦層僅產(chǎn)于長(zhǎng)石質(zhì)橄欖巖中。
ledge是什么意思：
n. 巖架；壁架；窗臺(tái)；礦層；暗礁
  • Get to the ledge!
    快跳到巖架上！
  • There are some objects of art on the ledge.
    壁架上有一些工藝品。
  • The Hekou group is the major ledge.
    河口組是主要的含礦層位。
  • A ledge between the parapet and the moat in a fortification.
    擱板在堡壘中護(hù)城河與護(hù)墻之間的擱板
  • That black grouper on the ledge is hoping to catch one.
    那個(gè)暗礁中的黑鯰魚正要跳出抓住一條。
manto是什么意思：
席狀交代礦床; 平臥狀礦床; 礦層

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