通过对火疤木的调查与分析，研究了大兴安岭北部原始林区的森林火历史。

Based on the analysis of fire scars, the fire history of the Daxing 'an mountains' virgin forests is studied in this paper.

youdao

慢工出细活，依照春木或夏木、直纹或曲纹、节疤、年轮以及自身瑕疵的不同，各种木材都会被物尽其用，并顺其自然。

Wood moved slowly, but not equally, with its mixture of springwood and summerwood, straight and wavy grain, knots, rings and imperfections. And it would always go the way it was naturally inclined.

youdao