The laser signal combined with a closed - loop control system can be used in automatic level flatting of the ground.
自准水平激光仪的激光信号与闭环控制系统的结合，实现地面的水平平整，它是自准水平激光仪的一种动态应用。
Information transmission between ground and down hole is the of key the closed-loop control system of wellbore trajectory.
地面与井下的信息传输是井眼轨道自动闭环控制的核心。
The laser flatting signal combined with a closed-loop control system can be used in automatic level flatting of the ground.
激光扫平信号与闭环控制系统结合，可实现地面的水平平整。
Two way transmission between the train and ground facilitates closed-loop acknowledgement.
车-地之间双向传输，信息闭环确认；
The laser signal combined with a closed - loop control system can be used in automatic level flatting of the ground. It is a dynamic application of laser beacon.
自准水平激光仪的激光信号与闭环控制系统的结合，实现地面的水平平整，它是自准水平激光仪的一种动态应用。
The laser signal combined with a closed - loop control system can be used in automatic level flatting of the ground. It is a dynamic application of laser beacon.
自准水平激光仪的激光信号与闭环控制系统的结合，实现地面的水平平整，它是自准水平激光仪的一种动态应用。
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