Automatic drive system must be studied step by step.
实现自动驾驶不是一躇尔就的。
The hydraulic amplifier is the hydraulic control system based on the theory of hydraulic drive and automatic control.
液压放大器，是在液压传动和自动控制理论基础上，建立起来的一种液压控制系统。
Device used to move automatic guns in a vertical plane. A reversing or reciprocating drive system provides motion.
喷枪在垂直面自动移动的装置，一个回动的或往复式的提供移动的装置。
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