回跳法配制試樣 preparation of sample: 樣品的制備; 樣品制備preparation sample: 備樣sample preparation: 試樣制備; 試樣準(zhǔn)備; 樣品處理; 樣品加工; 樣品制備coal sample of preparation: 煤樣制備coal sample preparation: 煤樣設(shè)備下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯