煤砖，炭砖把煤灰，木炭或锯木灰和木片压缩制成的砖块状物，用作燃料和点火。

A block of compressed coal dust, charcoal, or sawdust and wood chips, used for fuel and kindling.

youdao

煤砖，炭砖把煤灰，木炭或锯木灰和木片压缩制成的砖块状物，用作燃料和点火。

A block of compressed coal dust, charcoal, or sawdust and wood chips, used for fuel and kindling.

youdao