rock core drill

常见例句

雙語例句

• A drill bit used for obtaining core samples in concrete or rock formations.
  鑽頭被用來在水泥或巖層獲取巖芯樣品。
• This allows the bit to drill around a central cylinder of rock, which is taken in through the bit and into the core barrel.
  這樣允許鑽頭圍繞巖石的中心圓柱躰鑽進，竝通過鑽頭進入取芯桶。
  www.infopetro.com.cn

權威例句

• In its Fruta del Norte site a drill core showed a rich 32 troy ounces of gold per ton of rock.
  FORBES: Latin Mining Via Toronto
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