重点介绍了指挥站测控与监控系统、方向盘力反馈技术、无缝隙切换技术，以及数据与图象无线通信系统。
The control and monitor subsystem, the force feedback technique for steering wheel, the smooth switching for motion mode, and the telecommunication subsystem are detailed in the paper.
基于缝隙对声发射波传播有影响的现象，作者研制成一种利用声发射- 微处理器控制的焊缝跟踪系统。
Based upon the influence of a gap on the propagation of the acoustic emission waves, thedesigning of the weld seam tracking system with an acoustic-emission-microcontroller is described.
由于携砂液向地层的滤失以及通过筛管缝隙的流体质量交换，水平井砾石充填过程中冲筛、井筒环空两个流动系统均为复杂的变质量流。
During the process of gravel-packing in horizontal Wells, there are the filtration flow of the carrier fluid to the formation and the exchange flow through the screen slots.
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