Complex sentence: The CS is a slow running (600 rpm), reliable engine, suitable for driving electric generators or irrigation pumps, which has been widely used, especially in less-developed countries, where it's robustness and ease of maintenance are highly valued.
Split into simpler sentences: The CS is a slow running (600 rpm), reliable engine, suitable for driving electric generators or irrigation pumps. It has been widely used, especially in less-developed countries, where its robustness and ease of maintenance are highly valued.