To understand the next command, you need a basic knowledge of the WLM concept of service class.
要理解下一个命令，您需要基本了解服务类的WLM概念。
Firstly, I will learn basic knowledge of advertisements from my tutor carefully. And I will also supply relevant knowledge after class.
首先，最重要的还是认真跟着导师学习专业知识，在课外积极完善并补充相关知识。
Machinery engineering specialty or economy class bachelor degree or above, majored in machinery engineering professionals must possess good basic knowledge in science and engineering.
机械类工科专业或经济类大学本科及以上学历，机械类工科专业需具备较好的理工科基础知识。
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