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- gravimetry in borehole [经] 井下重力测量
- Applications of airborne gravimetry in geodesy and geophysical exploration are illustrated with real examples. 对航空重力测量在大地测量和地球物理勘探中的应用作了归纳和概括，并举例说明了其应用效果。
- Orientation is very important for a seismometer, whether it is installed on surface or in borehole. 摘要无论地震计在地表或是井下使用，都必须精确定向。
- Good economic efficiency can be obtained when this mud is applied in borehole wall sloughing in water sensitive shales. 该体系可解决强水敏页岩的井眼失稳问题 ,具有良好的经济效益。
- Preferable effect was realized by using lesser dosage.Problem of Visbreaking in borehole and surface delivery was resolved. 以较少的加药量实现了较好的乳化效果，实现了井筒降粘以及地面管输变的问题。
- The top stratum of Puguang 3 well belongs to highly steep structure, and its obliquity is big which result in borehole deviation. 普光3井上部地层属于高陡构造,地层倾角大,极易发生井斜,地层可钻性差,蹩跳钻严重,上部地层防斜打直是施工的难点。
- An upgoing and downgoing arrangement of transducers in a logging tool, largely to offset spurious changes in reading caused by variations in borehole size or sonde tilt. 指换能器在测井仪器中的上、下配置方式，主要用来补偿由于井眼尺寸变化或探头倾斜所引起的测井读数的不合理变化。
- The methods to calculate pressure,d rilling fluid density,gas content and solid content in borehole are given,and th eir distributions along the borehole are discussed. 给出了井眼中压力、钻井液密度、含气量和固体浓度的计算方法，并对它们的分布规律进行了研究。
- Geological circumstance in Xinzhan area is complicated and borehole collapses occur easily during drilling operations that result in borehole obsolescence. 新站地区地质情况比较复杂,在钻井施工过程中极易发生井塌等情况,严重者由于井塌而导致了新钻井被迫报废进尺。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- A fire was burning in the grate. 火在壁炉中燃烧着。
- They differ in size but not in kind. 这些东西的区别只是大小不同而实质一样。
- I am a hundred percent in agreement with you. 我百分之百同意你的看法。
- You didn't embarrass me in the slightest. 你一点也没让我为难。
- Young ladies used to have lessons in deportment. 少女以前要上仪态课。
- I got a new coat in that store last week. 上礼拜我在那家店买了一件新外套。
