Okay, the user wants me to translate "c-spanner" into Thai. Let me check if "c-spanner" is already in Thai. It's not, since it's an English term. Now, I need to figure out the correct Thai translation. "C-spanner" is a type of wrench, specifically a crescent wrench. In Thai, the term for crescent wrench is "คีมปากกาจักร". Let me confirm that. Yes, "คีมปากกาจักร" is the standard translation. I should make sure there's no alternative term. Maybe "คีมจักร" is a shorter version, but "คีมปากกาจักร" is more precise. The user specified to provide only the translation without explanations, so I'll just output the Thai term.