木材是固体材料,按照固体理论,当温度不太高时,组成固体的微粒(分子、原子或离子等)在其平衡位置附近作谐振动,微粒成为谐振子,有一定的能量,所以固体具有热容量。在固体中作热振动的微粒有一定的振幅,可以对邻近微粒施加周期性的作用力,作热振动的微粒彼此相互作用,导致微粒间能量的转移,形成固体的热传导。当微 Wood is a solid material. According to the solid theory, when the temperature is not too high, the particles (molecules, atoms or ions) that make up the solid form a harmonic vibration around the equilibrium position. The particles become the harmonic oscillator and have certain energy. So the solid has Heat capacity. The particles that are thermally vibrated in the solid have a certain amplitude and can exert a periodic force on the neighboring particles. The particles that are thermally vibrated interact with each other, causing the energy transfer between the particles to form a solid heat conduction. When micro