drill hole

基本解釋

"The drill hole is just a pinprick on an elephant's back, " he said.
“鉆井對于整個巖漿體來說只不過是大象背上的一個小針孔?！?馬施說。
Drilling: refers to the use of drilling or milling machine drill hole of the workpiece process.
鉆孔：指在鉆床或銑床上使用鉆頭對工件進行打孔的工藝過程。
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In general can be twist drill hole, but you should drill holes, step and then expanded to the required diameter.
用一般的麻花鉆即可開孔，但應(yīng)先鉆小孔，然后步擴大到所需直徑。
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What they've done before the commercial versions is using, like, five-gallon buckets of this drill hole in the bottom, so they can plant through, put some dirt in and hang it up.
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Either way it is particularly disappointing when you drill a dry hole such as happened to the partners in the Blueberry Hill side-track well (EXXI was not among them), which found nothing and required a write-down in the quarter, surely a factor in the price drop of the stock.
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