求翻译：我采用了上、下位机结构、串行485通信和适于工况作业的手持式控制器硬件结构，设计了电机驱动模块、编码器反馈信号检测模块、通讯模块和液晶显示模块；采用了手动和自动两种控制模式。是什么意思？

I used on the lower machine structure, serial 485 jobs and suitable working conditions handheld controller hardware architecture, the design of the motor drive module, encoder feedback signal detection module, communication module and liquid crystal display module; manual and automatic control mode.

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I used on, the lower position machine structure, serial 485 have corresponded and am suitable for the operating mode work the handhold controller hardware architecture, has designed the motor-driven module, the encoder feedback signal examination module, the communication module and the liquid cryst

I used upper and lower computer structures, the serial 485 communications and handheld controller hardware suitable for the conditions the job structure, designing a motor-driven feedback signal detection modules, code modules, communication module, and liquid crystal display module; using manual an

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