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- Bits that have been selected for use in the drilled wells in Moxizhuang area are not rational, resulting in relatively low ROP. 莫西庄地区已钻井钻头选型不合理,机械钻速偏低。
- Deep well drilling is characterized by long open holes, high bottomhole temperature, bad rock drillability, low ROP and wellbore sloughing, etc. 深井钻井具有裸眼段长、井底温度高、岩石可钻性差、机械钻速低、井眼易失稳等问题。
- Causes and Games of Low ROP in Deep and Large Wells 深井大尺寸井眼钻速低的原因及对策
- KQC series of air hammers used in gas drilling can solve certain problems,such as lower ROP(Rate of Penetration) and well deviation,which occurred in mud drilling in above medium hard formation. 在油田气体钻井中使用KQC系列空气锤,解决了泥浆钻井在中硬以上地层中钻速慢、易井斜的难题。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- The singer forced his low notes. 那位歌手勉强唱出低音。
- He because of bashful but low head. 他因羞愧而低下了头。
- The ship lay keeled over at low tide. 那艘船因退潮而倾覆。
- My home town lies low in a hidden valley. 我的家乡位于一个隐蔽的山谷里。
- Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
- After a brief rally share fall back to a new low. 股票经过一次短暂回升后回落到一个新的低点。
- Talking in a low voice were a man and a woman. 低声讲话的是一男一女。
- Judy bent her face low over the notebook. 朱迪把脸凑近笔记本。
- The food should be kept at low temperature. 这种食品应低温保存。
- The publisher paid his hacks low. 出版商付给他雇佣的文人很低的费用。
- Winter is the low season at seaside hotels. 冬季是海滨旅馆业的淡季。
- Lead will fuse at quite a low temperature. 铅会在相当低的温度下熔化。
- The economy of the country is at a low ebb. 该国的经济处於衰退阶段。
- The act or posture of bending low or crouching. 下蹲，蹲伏下蹲或蹲伏的动作或姿势
- How do they manage to subsist on such a low wage? 他们这点工资怎么糊口？
