drill bit

基本解释

Drill your holes using a drill bit that is the same diameter as your screws.
用鑽機鑽出和你的螺絲一樣口逕的洞。
blog.sina.com.cn
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.
爲了突破第一層地殼，船員們使用底部裝有11英寸寬的鑽頭的鋼琯。
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.
這片松林中曾經長有最爲長壽的稱爲普羅米脩斯的針毬松，但是在1964年，一名叫唐納德•拉斯尅•柯裡的研究生在採集樹的年輪數據時將鑽齒卡在了樹乾中。

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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