First, in the tax system introduces "contracted spirit" and "equality principle"

中文解释

首先利用PLC与步进电机设计舵角产生装置代替实际中复杂庞大的液压舵机系统,再将自动操舵仪及其附属设备进行硬件连接,形成了舵角反馈回路。

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