It points out the PLC design key is to satisfy the basic control function and the capacity, and maintenance convenience, the system extension and so on.

指出了PLC设计的关键主要是能满足基本控制功能和容量，并考虑维护的方便性、系统可扩展性等。

youdao

The basic function of the system included knowledge expressing, reasoning, acquisition, maintenance.

本系统的基本功能分为知识表达、知识推理、知识获取和知识维护。

youdao

The water processing system is the basic guarantee of hemodialysis, this article describes the composition of the water processing system, design requirements and basic maintenance.

水处理系统是血液透析的基本保障，本文着重介绍了水处理的组成，设计要求和基本的维护。

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If we are going to tackle health care for millions of people across Africa we must first tackle the most basic elements of any health system: logistics, maintenance, local skills and communications.

FORBES: Let's Finally Get the Fundamentals of Healthcare in Place in Africa