water coal mixture的用法和樣例：
例句
- The necessity of expanded coal rank for CWM production and saving coking coal resources were discussed in this paper.
摘要闡述了節約煉焦煤資源，擴大制備水煤漿煤種范圍的必要性。 - This article mainly introduces the preparation of petroleum pitch coal additive agent and the slurrying ability of coal on adding petroleum pitch.
主要介紹了石油瀝青水煤漿添加劑的制備和在煤中摻入石油瀝青的制漿性能。
