Study of numerical simulation of cyclic waterflooding in Li 33-19 well group of Lijin oilfield.;
利津油田利33-19井组周期注水数值模拟研究
Practice and recognition of cyclic waterflooding in Zhuang 45-1 block of Zhuangxi oilfield.;
桩西油田桩45-1块周期注水实践与认识
Analyze Effect of Geologic Factor in Cyclic Waterflooding;
影响周期注水效果的地质因素分析
According to the reservoir depositional properties and the distribution law of remaining oil,this paper analyzed the past cyclic injection based on hydrodynamic theories and former experiences.
针对萨北开发区油层沉积特点及特高含水期剩余油分布特点,以水动力学原理为指导,对以往周期注水的效果进行分析,在已有的实践经验基础上,结合数值模拟研究,优化周期注水方式及各项参数,引入了油井间歇采油改变液流方向改善开发效果的做法,在实践中取得了较好的效果。
Universal algorithm for computing dispersion characteristics of arbitrary coaxial periodic slow-wave structure
同轴周期慢波结构色散特性的通用数值解法
Civilization Transformation in Axial Period on the Concept of "Divinity" in the Book of Changes;
从《周易》“神”的观念看轴心期文明的转型
The maximum absolute value of a periodic curve measured along its vertical axis.
振幅沿垂直轴摆动的周期性曲线的最大绝对值
The tilt of the planet's spin axis oscillates by as much as20 degrees over a period of125,000 years.
火星自转轴的倾角，以12万5000年为周期，变化达到20度。
The major semiaxis a and p of the relative orbital motion are known.
我们知道其相对轨道运动的主要半长轴a和周期p。
Large Slew Bearing Condition Based Maintenance and Emulation Research about Best Testing Periodic Time;
回转大轴承的状态维修及其最佳检测周期仿真研究
Influence of Cell Cycle Modulation on Microenvironment of Axonal Regeneration after Spinal Cord Injury in Rats;
细胞周期调控对大鼠脊髓损伤后轴突再生微环境的干预机制研究
Study on Dephasing Calibration of Periodical Error and Core-tip Positioning System in Making Precision Rotary Cutting Tools
回转类精密刀具制造用芯轴定位系统及周期误差移相修正研究
PERIODIC ITERATIVE COMPENSATION ON UNBALANCE FORCES OF RIGID ROTOR WITH ELECTROMAGNETIC BEARING SUPPORTS
电磁轴承支承的刚性转子不平衡力的周期性迭代补偿
Effect of cyclic spheroidizing annealing on microstructure and mechanical properties of GCr15 bearing steel
周期球化退火对GCr15轴承钢组织及力学性能的影响
Spokes radiate from a wheel huB.
轮条从轮轴向四周伸出
Business cycle; trade cycle
商业周期,经济周期
period staggering
周期错调, 周期参差调谐
By transverse exposure, periodical modulation of refractive index is formed along the axis of optical fiber.
制备原理是对光纤横向曝光，使光纤的折射率指数在轴向发生周期性变化。
a law stating that the ratio of the square of the revolutionary period (in years) to the cube of the orbital axis (in astronomical units) is the same for all planets.
说明所有行星的运行周期的平方（年）和轨轴的三次方（天文单位）的比例都一样的定律。
Certain engines with overhead camshafts have timing belts that have a limited life span.
顶制凸轮轴结构的汽车发动机都配备了正时皮带，并且这个皮带的生命周期是有限的.
The crankshaft makes three rotations for each rotation of the rotor.
转子每转一周，曲轴转3周。
As the crankshaft rotates, the crankpin swings in a circle around the shaft.
随着曲轴的转动，曲柄销绕主轴作圆周摆动。