Unverified90% confidenceFactTime unknown
硬木(橡木、桦木、白蜡木、山毛榉)密度高,单位体积热量比软木高约30-50%,燃烧时长更久、火焰稳定,适合取暖过夜;软木(松、杉、云杉)易点燃但燃烧快、产油脂和火星,更适合引火
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