rock core drill
常見(jiàn)例句
- A drill bit used for obtaining core samples in concrete or rock formations.
鉆頭被用來(lái)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.
這樣允許鉆頭圍繞巖石的中心圓柱體鉆進(jìn)，并通過(guò)鉆頭進(jìn)入取芯桶。
www.infopetro.com.cn - 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 返回 rock core drill