1、The reaming drill bit in slim hole is a key tools of re-drilling in existing well.
小井眼擴(kuò)孔鉆頭是老井重鉆的關(guān)鍵設(shè)備。

2、In the photo, the spiral striae left by the drill bit can clearly be seen in the plug of the lock.
在圖片中，可以清楚地看到鎖芯里的由鉆頭留下的螺旋狀印跡。

3、A drill bit used for obtaining core samples in concrete or rock formations.
鉆頭被用來在水泥或巖層獲取巖芯樣品。

4、Another probe, this one with a spinning drill bit at the tip, appears.
另外一個探針，頂端有一個紡紗一樣的鉆頭。

5、Are resharpened drill bit inspected and identified prior to use?
再次研磨的鉆咀是否在使用前進(jìn)行檢驗(yàn)與確認(rèn)？

6、AN APPROACH TO PREDICTION AND POST DRILL ANALYSIS OF DRILL BIT FOOTAGE
鉆頭進(jìn)尺的預(yù)測與事后分析方法

7、The Application of Expert System in Drill Bit Design and Use
專家系統(tǒng)在鉆頭設(shè)計(jì)及使用中的應(yīng)用

8、Another probe, this one with a spinning drill bit at the tip, appears
另外一個探針，頂端有一個紡紗一樣的鉆頭。

9、The drill bit breaks through the wall and he smiles.
當(dāng)鉆頭鉆通了墻后，他高興地笑了。

10、Also in development are new drilling muds that cool the drill bit during operation.
新的鉆探泥漿(用于在操作時冷卻鉆頭)也在開發(fā)中。