返礦 fines return: 粉末放出cold return fines: 冷返礦屑hot return fines circuit: 熱返粉礦系統(tǒng)proportion of return fines: 返礦比sinter machine return fines: 燒結(jié)機(jī)返礦下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯