The techniques of hydraulic control of shield tunneling machine are also described.

结果表明采用电液比例控制技术可以实现刀盘的调速要求；

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Boring attitude control of shield tunneling machine is an important control part of its control system.

盾构掘进机掘进姿态控制是其控制系统的重要组成部分，速度控制是其控制的一个方面。

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Tunneling machine is the most important device in mechanical tunneling of coal mine roadway, but it is operated by driver with hands.

掘进机是煤矿巷道机械化掘进中最重要的设备，目前仍由司机手动操作。

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Examples include: high accuracy machine tools, deep underground tunneling machines, telecommunications equipment, underwater surveillance gear, sophisticated computers, manufacturing equipment associated with microelectronics, advanced composites and super-alloys.

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Key technologies transferred by or through Germany to the Soviet Union include: high accuracy machine tools, deep underground tunneling machines, telecommunications equipment, underwater sensors, sophisticated computers and manufacturing equipment associated with microelectronics, advanced composites and superalloys.

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