工藝原則流程圖 coal preparation: 煤的制備; 煤的準(zhǔn)備; 選煤coal-preparation: 煤的制備preparation of coal: 選煤flowsheet: 板程序框圖, 操作程序框圖; 程序表; 撂圖; 流程圖；流程表coal preparation and pretreatment: 煤的制備和預(yù)處理下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
