A mixture or solution involving coal or a related byproduct
कोयले का विलयन
English Usage: Engineers are studying the solution of coalter to improve energy efficiency.
Hindi Usage: इंजीनियर ऊर्जा दक्षता को सुधारने के लिए कोयला समाहार का अध्ययन कर रहे हैं।
koyla samahaar, koyla samaahar, koyela samahar, koyla samahar, koyla samaahaar
