gravity fuel feed 中文意思是什麼
gravity fuel feed
解釋
燃料重力自流進料-
Domestic solid mineral fuel fired boilers with rated output up to 45 kw - specification for gravity feed boilers designed to burn small anthracite
額定輸出不超過45kw的家用固體礦物燃料鍋爐.第2部分:燒小塊無煙煤的重力給煤鍋爐規范
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