Archaeological study of wood charcoal found in hearths dating to the various episodes of occupation indicated that the species use changed in a patterned way.
考古研究发现,在壁炉中发现的木炭可以追溯到不同的时期,这表明物种的用途发生了模式上的变化。
wood charcoal contains up to 98% carbon.
木炭含有相当于98%的碳。
No candle flickered at their table, but a bucket of fiery wood charcoal hissed in the tabletop grill pit.