Keep the drill centred in the borehole while it ascends and descends.
当钻头上下钻时，要把钻孔保持在中心。
Since 2006, in France, an unknown gang of thieves have been emptying supermarket safes, using nothing more than a drill and a modified vacuum cleaner.
自2006年起，法国有一个不知名的盗窃团伙专门开超市保险箱，所用的工具只有电钻和改造的真空吸尘器。
You have to drill into rocks much harder than those you normally encounter in oil fields.
你必须在岩石上打钻，而那些岩石比你通常在油田遇到的要硬得多。
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
激光有强烈的光束，可以在钻石上钻洞，而且可以被很好地控制，用于精密的眼部手术。
A fire drill will be conducted in your residence hall every semester.
每学期都会在宿舍楼进行一次消防演练。
The region is engaged in a multi-day earthquake-and-tsunami drill involving around 20,000 people.
该地区正在进行为期多日的地震和海啸演习，约有2万人参加。
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
凭着本身强烈的光束，激光可在钻石上钻一个洞，而且可以被很好地控制，因此能用于精密的眼部手术。
Green campaigners said the spill demonstrated the dangers of oil exploration, and called for an end to proposals to drill in the Arctic.
绿色活动家们称泄漏证明了石油勘探活动的危险性，并呼吁终结在北极钻探的提案。
Dr Parsons said data from the research will also be important for oil companies looking to drill in areas where these rivers exist.
帕森斯博士表示，这些研究资料对石油公司也会非常有用，如果他们想在有暗河存在的地区钻探油井的话。
Chesapeake Energy, one of the biggest shale-gas firms, recently abandoned plans to drill in New York State after such worries were raised there.
最近，最大的页岩天然气开发公司之一，Chesapeake能源公司就因为此类担忧而放弃了在纽约州的钻探计划。
A recent earthquake drill in Shinjuku railway station, where up to 200, 000 commuters might head after an earthquake in the hope of getting home, sounded a warning.
新宿车站的最近一次地震演习已经拉响了警报——多达20万名乘车上下班的人希望在地震后能够回家。
Police officers help a "victim" from a building during a mock nuclear detonation drill in Butlerville, Ind.
在Butler ville(美国印第安纳州的一个村庄)进行的一场模拟核爆炸演习中，警察帮助一名受害者逃离一幢楼房。
But compared to sitting in a dentist's chair with a drill in your mouth, flossing is a joyful celebration.
但相比那些坐在牙科医生的椅子上嘴里塞着钻头的人，使用牙线是件值得庆祝的事。
And as oil firms are forced to drill in ever deeper waters, ships suited to the task of towing and maintaining new RIGS will be needed.
同时由于油井必须向更深的水下开采，适合于拖动和维护新型海上石油钻井的船舶也会有需求。
Shell has been at the forefront of plans to drill in the Arctic waters of the Beaufort and Chukchi seas.
壳牌已经站在了在波弗特海和楚科奇海的北极区海域进行开采计划的前沿。
Just this quarter, BP received leases to drill in new deepwater blocks off the coast of Trinidad and Tobago.
就在本财季，BP获得了在特立尼达和多巴哥（拉丁美洲岛国——译注）附近深海区域进行钻井勘探的租约。
Separately, the US and the Philippines are holding joint military drill in the adjacent waters of the South China Sea. What is China's comment?
第二，美国和菲律宾正在南海附近海域举行联合军演，中方对此有何评论？
The British oil company will have to pay roughly $20 billion as compensation for the oil spill at its offshore drill in the Gulf of Mexico.
英国石油公司将必须支付大约200亿美元以清偿其在墨西哥海湾沿岸造成的石油喷井。
On June 11, 2005, a newly trained Iraqi soldier holds his weapon on his shoulders during a drill in East Fallujah Iraqi Camp, a base for recruits of the Iraqi armed forces.
2005年1月11日，在东伊拉克费卢杰营，伊拉克新兵将武器扛在肩上接受训练。
These children were among almost 8m Californians who this month staged the Great California ShakeOut, the largest earthquake drill in American history.
这个月，加州举行了美国历史上最大的地震演习，“GreatCalifornia ShakeOut”。大约有800万加州人分阶段的参加了演习，这些孩子就是其中之一。
The next year saw them make a new record by boring a well with one drill in a single day.
第二年，他们创造了一台钻机一天打一口井的新纪录。
The shocked woman doesn't appear to make a sound as she reaches up to feel the large bald patch on her head as the long strands of her dark hair still rotate on the drill in front of her.
摸着自己秃掉一块的头顶，这名震惊的女子并没有发出任何声音，而她的发丝依旧随着电钻在她面前飞速转动。
European peasants would insert a wooden drill in a round hole and rotate it briskly between their palms.
欧洲的农夫将一个木钻子放入一个圆孔并用手掌不停旋转它。
Perhaps they have become old mice and old chili, but as long as you get very, very small, like ants is so big and small, to be able to drill in the rat Dong Fu prove this point oh.
或许他们已经成为老老鼠和老辣椒了，不过，只要你变得很小很小，像蚂蚁那般巨细，才能够钻进老鼠洞府内证明这点哦。
It is difficult to control the hole and the slope during frozen drill in profundity surface soil, this text bring forward some experience of management and construction.
针对深厚表土层中冻结钻孔存在的钻孔深、偏斜率难控制等施工存在的问题，提出了一些施工与管理的经验。
The drill in the South China Sea is a regular one conducted by the Chinese Navy in accordance with its annual training plan, said China's Ministry of National Defense, refuting foreign media reports.
针对有媒体称此次南海军演是应对南海仲裁案结果即将出炉，中国国防部表示，这是海军根据年度计划进行的例行性演练。
The drill in the South China Sea is a regular one conducted by the Chinese Navy in accordance with its annual training plan, said China's Ministry of National Defense, refuting foreign media reports.
针对有媒体称此次南海军演是应对南海仲裁案结果即将出炉，中国国防部表示，这是海军根据年度计划进行的例行性演练。
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