"基本工作方式" can be translated as "basic working mode" or "fundamental way of working" in English, depending on the context and the level of formality desired.
"Basic working mode" is more straightforward and commonly used in technical or professional contexts to describe the foundational or default method of operation.
"Fundamental way of working" emphasizes the core or essential principles underlying how work is done and might be more suitable in discussions about organizational culture, work methodologies, or philosophical approaches to work.
For most general purposes, "basic working mode" would be a suitable and widely understood translation.