অনুসন্ধানের ফলাফল: "Shooting gases"

বিষয়শ্রেণী · সকল সম্প্রদায়
A pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders, masses of small soli…