因此，该如何估计机械手的位置和定方位以精确的和有效率的方式是特别兴趣。
Therefore, how to estimate robots' positions and orientations in a precise and efficient way is of particular interest.
定方位射孔完井技术是提高低渗透油气藏和裂缝性油气藏勘探开发效工的一项新技术措施。
Therefore, the oriented perforating completion is a new technology for improving the development benefits of the said reservoirs.
孔子说，“以道德来统帅国政，就像北极星端坐在一定方位上，而满天星斗都环绕它运行。”
The Master said, "he who conducts government with virtue may be likened to the North star, which, seated in its place, is surrounded by multitudes of other stars."
根据定方位射孔工艺的实际应用情况，通过改进射孔器结构和施工工艺，提出了射孔孔眼平行地层射孔的实现方法。
Based on actual application of orientation percolation tech by developing percolator structure and operation techniques, method of percolated hole being parallel to formation is presented.
岩样经一定步骤的磁清洗、相应的磁性参数测量和数据处理，可恢复岩样在地下的原始方位。
The original orientation of the core in the formation can be obtained by magnetic cleaning test, magnetic parameter measurement and data processing.
试验验证，在一定范围内，放电方位的变化对耦合信号的影响不是很明显。
The test results show that the influence of discharge location on coupling signal is weak.
凹形圆弧偶端电极场是由偶数（2N）个对称地放置在方位角方向上、并具有一定电位的同样的凹形圆弧电极所产生的电场。
The 2N-pole fields are generated by 2N identical, symmetrically-arranged in azimuthal direction electrodes of circular concave form, whose potentials are Vo and -Vo alternately.
当惯性陀螺工作在方位姿态时，有一定的斜坡漂移，它将引起惯性导航系统中的严重的航向和位置误差，所以有必要估计和补偿它。
There exists a slope drift in an integral gyro when it is used as an azimuth gyro, which may cause serious heading and position errors in the Inertial Navigation System (INS).
采用定向射孔，使得实际射孔孔眼与原来设计的具有一定角度和方位的偏差，主要有孔眼轨道产生的偏差、孔眼角度产生的偏差等。
By use of oriented perforator, a certain variance of Angle and azimuth between actual perforated hole and former design is made which mainly caused by hole trace, perforated hole Angle.
如果沿载体纵向相距一定距离放置两个GPS天线，则在载体上两个天线载波相位之间求差可确定载体的方位。
The azimuth can be determined by fixing two GPS in a certain distance along the longitudinal vector and making a carrier phase double difference between them.
东、南、西、北，这叫作四方，是指各个方向的位置。这四个方位是相对的，必须有个中央位置对应，才能把各个方位定出来。
We have four ways or directions called east, west, south, and north. These four ways are reciprocal, determined by a central position.
利用有一定间距的两部声纳基阵提供的目标方位和时延差的信息，实现对目标的被动测距。建立了测距物理模型，给出了后置距离滤波算法。
In this paper, we introduce passive ranging of target based on the bearings and time-delay information of dual arrays and filtering algorithm of ranging.
该机械手能在三维空间完成各种作业，在一定空间范围内将一个物体从一个方位搬运到另一个方位。
The manipulator is capable of finishing various operations in a three-dimensional space and can carry an object from one azimuth to another azimuth within certain spatial range.
本发明还涉及所述方法所采用的装置，可以更加快速的搜索到保偏光纤的所在方位角，从而提高定轴速度和定轴精度。
The invention also relates to the adopted device, can more quickly search polarization maintaining optical fiber azimuth to increase axle fixing speed and precision.
早期的指南针采用了磁化指针和方位盘的组合方式，整个指南针从便携性、指示灵敏度上都有一定不足。
Since the early use of a magnetic compass and direction-pointer of the composition, the entire compass from scratch, on the instructions of a certain sensitivity of the defect.
早期的指南针采用了磁化指针和方位盘的组合方式，整个指南针从便携性、指示灵敏度上都有一定不足。
Since the early use of a magnetic compass and direction-pointer of the composition, the entire compass from scratch, on the instructions of a certain sensitivity of the defect.
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