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- downing speed of oil pipe 下管速度
- The manufacture of oil pipe requires a steady rest that provides strength, accuracy and repeatability. 强度,精度及重复精度是油管加工的关键。
- Finite element method (FEM) is commonly used in analysis of magnetic flux leakage (MFL) of defect of oil pipe. 有限元法广泛应用于石油管道缺陷漏磁场分析,成为替代物理试验,获得大量缺陷漏磁信号的有效手段。
- The speed of this aircraft is very high. 这架飞机的速度非常快。
- In the light of the shortcomings of small leakage diagnosis of oil pipe line, a new leakage detection method based on modified rarefaction wave diagnosis model is presented. 针对国内外对输油管道小泄漏诊断工作存在的不足,研究了一种基于改进的负压波诊断模型的泄漏诊断方法。
- The hurricane has a speed of 73 miles per hour. 飓风每小时73英里。
- The speed of a runaway horse count for nothing. 脱缰之马的速度毫无价值。
- An oil pipe is being laid between the two cities. 在两座城市间正在铺设一条油管。
- The speed of light is an important constant. 光速是一个重要的常数。
- Through the analysis of oil pipe disabled, the main causes for disable oil pipe in Zhongyuan Oil Field has been determined as following: the inside wall of oil pipe damaged in notch by frictions, oil corrosion and the liquid washing out. 通过油管失效形貌的分析研究,确定了抽油杆摩擦致使油管内壁形成沟槽式破坏并伴随井内介质综合腐蚀和井内液体冲刷的共同作用,是中原油田油管失效的主要原因。
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- The price of oil has suddenly rocketed up. 石油价格突然飞涨。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- Oil pipe screw grease smearing tool is a kind of oil field tools mainly aused to solve the sealing problems when downhole tools are jointed onto oil pipes. 油管丝扣油脂涂抹器是基于解决下井油管和工具螺纹密封问题而研制的一种矿场工具。
- The country has abundant supplies of oil. 这个国家的石油供应充裕。
- As there were leak on contact place between shaft and rotor body in built up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil sealed sliding vane rotary vacuum pump. 组合式空心转子由于轴头与转子体之间的结合面存在着渗漏,使泵的抽气效率性能下降,从而影响其在应用中的效率。
- Rapidity or speed of motion; swiftness. 迅速,快速运动的快速或速度; 迅速
- The price of oil have reach$30 a barrel. 石油的价格已涨到每桶30美元。
- How much does a barrel of oil cost? 一桶石油要多少钱?
- When did the first measurement of the speed of sound take? 第一次测量声速是在什么时候?