Near-vertical wells have no reference to the high side of the well rendering inclinometers ineffective. To facilitate accurate gun positioning an oriented gun hanger would need to be set using a gyro.
由于倾角仪在这种接近垂直的井中会失去效果，故工具无法参考其朝上的那端来做射孔方向定位。
This paper provides a scheme of design and realization angle-digital conversion in orienting and positioning navigation system for self-propelled Gun.
介绍自行火炮定位定向导航系统中一种实现轴角-数字转换的设计方案。
The assignment of the project is to design a positioning and orientation receiver, which can satisfy the requirement of high mobility troop, such as self-propelled gun and missile forces.
课题任务是设计一种定位定向接收机，以满足自行火炮、导弹部队等高机动性作战部队的定位定向需求。
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