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- The spiral drill collars are being tried to use. 螺旋钻链正在试用。
- The birds circled in a slow spiral above the house. 鸟儿在房子上空缓缓盘旋。
- Spiral drill collars made in our plant are in accordance with API standard. 本厂制造的螺旋钻铤按照“API”标准生产和验收。
- They have not measured the length of spiral drill collars and monel collars yet. 他们还没测量螺旋钻铤和无磁钻铤的长度。
- In this article, the auth or specially introduces the structure of impact spiral drill machine and its ope ration techniques. 本文详细介绍了冲击螺旋钻的构造和成孔操作技术。
- The main products are:Slick Drill Collar,Spiral Drill Collar,Nonmagnetic Drill Collar,Heavy Weight Drill Pipe,square and hexagonal Kelly. 并可承接特殊规格的石油钻具产品的生产。
- Our truck slowly spiralled up the hill. 我们的卡车盘旋着慢慢爬上了山。
- The bird slowly spiraled upward. 鸟慢慢地盘旋上升。
- Impact Spiral Drilling is a new bore-making techni que.Its usage in the anchorage project of deep foundation ditch can solve the p roblem of drilling in the soft and hard cross stratum. 冲击螺旋钻孔是一种新的成孔工艺，在深基坑的锚固技术中成功地解决了软硬互层、夹杂地层的钻进。
- Relations were slow to normalize after the war. 战后国际正常关系恢复缓慢。
- Choosing and Improvement of Spiral Drill for Inclined Hole Machining 斜孔加工中麻花钻的选择及改进
- The beats of the drum were steady and slow. 鼓声平稳而缓慢。
- The slow steady roll of the ship made him sick. 轮船不停地缓慢摇晃使他感到不适。
- A slow theme introduces the first movement. 第一乐章以缓慢的主旋律开始。
- Its slow service gave the restaurant a bad name. 这家餐馆因缺乏效率的服务搞得名声很坏。
- She may be slow but at least she's reliable. 她迟钝是迟钝，但无论如何她很可靠。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- The little boy is slow in his wits. 这个小男孩弱智。
- This student is slow in learning English. 这个学生学英语很笨。
- He is slow to learn, but shows great perseverance. 他学得慢，但是他表现出不屈不挠的毅力。
