coal field
短語詞組
- fuxin coal -field 阜新煤田
- discharging coal dust field 平原型灰場
- Zhunnan coal -field 準南煤田
- coal particles field 煤粉顆粒場
- pulverized coal concentration field 煤粉濃度場
- coal combustion field 煤燃燒領(lǐng)域
- Huainan coal -field 淮南煤田
- coal mining field 煤礦區(qū) 返回 coal field