介绍了钻进微机自动控制软件的主要原理、系统的主要功能、用途及应用前景等。

The main theory of software for automatic drilling control by PC, the major functions, usages and application prospect of the system are introduced.

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介绍了卷扬式冲击钻进过程中，微机控制实现自动钻进的基本原理、硬件的组成和软件的设计。

This paper introduces the automatic drilling principle, the hardware composition and software program in the windlass percussive drilling by the microcomputer control system.

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因此，钻进效率低，回次进尺短，孔斜不易控制。

Also it is difficult to control hole deviation.

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