drill bit

基本解释

Drill your holes using a drill bit that is the same diameter as your screws.
用钻机钻出和你的螺丝一样口径的洞。
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Assemble Drill To break through the first layer of crust, the crew deploys a steel pipe with an 11-inch-wide drill bit at the bottom.
为了突破第一层地壳，船员们使用底部装有11英寸宽的钻头的钢管。
This grove was once home to theoldest known bristlecone, Prometheus, but in 1964, a graduate student namedDonald Rusk Currey was studying tree ring data and got his drill bit stuck inthe tree.
这片松林中曾经长有最为长寿的称为普罗米修斯的针毬松，但是在1964年，一名叫唐纳德•拉斯克•柯里的研究生在采集树的年轮数据时将钻齿卡在了树干中。

Of the mass man, the automated turbine and drill bit and bore, yes?
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It has good cash flow generation and upside potential from the drill bit.
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"One of the things BP hasn't gotten credit for is how successful they've been with the drill bit, " he says.
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