定向钻进的成败关键在干对造斜工具定向的准确性和可靠性。
The key problem of directional drilling is the accuracy and reliability of orientation of deflecting tools.
成就目标定向是以自我效能为中介来影响元记忆监测判断等级的高低及判断的准确性。
Achievement goal orientation had influence on the magnitude and accuracy of metamemory monitoring via self-efficacy.
江苏油田真148井的钻井实践证明，利用该方法不但能提高定向准确性而且可降低侧钻成本。
Applications at Zhen 148 Well in Jiangsu Oilfield illustrated that the method not only improves orienting accuracy but also cuts down sidetracking cost.
对于交流感应电动机控制技术，现在应用较为成熟的技术是转子磁场定向矢量控制，而该方法控制效果的好坏取决于其所使用电动机参数准确性。
For the control of AC induction motor, the vector control is the best mature way to control motor. But the control effect of vector control depends on the motor parameter.
对于交流感应电动机控制技术，现在应用较为成熟的技术是转子磁场定向矢量控制，而该方法控制效果的好坏取决于其所使用电动机参数准确性。
For the control of AC induction motor, the vector control is the best mature way to control motor. But the control effect of vector control depends on the motor parameter.
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