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- Cluster large drilling holes 束状大孔
- Since the crater-hole breakage is of great importance, it can be advisable to use a larger drill hole than the others in the raise. 由于漏斗炮眼的爆破效果非常重要，故天井爆破宜采用较大的炮眼直径。
- This power tool is used for drilling holes. 这个电动工具是用来钻孔的。
- large drill hole 大口径钻孔
- Measure rough dimension of drilling hole. 测量打孔珍珠大致尺寸.
- Essential elements of drill hole. 钻孔具有的结构和尺寸因素。
- The drilling machine can do many thingsbesides drilling holes. 除钻孔之外,在钻床上还可以完成多种工序。
- Levelling is usually carried out with vertical drill holes. 整平爆破通常用垂直炮眼进行。
- He is drilling holes in the granite with a steel drill. 他正用钢钻在花岗岩上打眼。
- They drill holes in the ice and drive light trucks over them. 他们在冰路上钻一些洞，然后驾驶轻型货车在路上开过。
- To drill holes in a mirror, you need a special mirror drill bit. 在镜子上钻孔，你需要一个特殊的镜子钻头。
- Since the crater-hole breakage is of great importance, it can be advisable to use a larger drill hole than the others in the raise 由于漏斗炮眼的爆破效果非常重要，故天井爆破宜采用较大的炮眼直径。
- Should Drill hole on the fuselage reinforcing plate. 要钻在机身的加强层板上。
- The oil well contains merely drilling holes,less than a foot in diameter. 油井仅仅是一些钻孔，其直径不到一英尺。
- Amphioxus body by the rapid movement and drilling holes in the ocean floor. 文昌鱼藉身体的迅速运动而在洋底钻洞。
- The carpenter drilled holes in the wood. 木匠在木头上钻孔
- He broached out the drilled hole. 他凿大钻孔。
- COSL AWO and the merger will establish the world's largest drilling fleet of 8. 中海油服和AWO公司合并后将建立世界第8大钻井船队。
- This calculation was based on surface trenching and eight diamond drill holes. 这个计算是基于表面挖坑八金刚石钻孔。
- Engineering practice shows that tubular drill is a high efficient drilling method, which has accumulated experience on all right drilling hole for the large floating rock and screed stratum. 工程实践表明，筒钻法对大漂石和卵石地层钻进成孔是非常有效的，这为该类地层的顺利成孔积累了成功的经验。
