求翻译：木材改性是在保证木材高强重比、易于加工、吸音隔热、纹理质朴自然等固有优点的前提下、通过一系列的物理、化学处理，克服木材干缩湿胀、稳定性差、各向异性、不耐燃、不耐腐不耐磨和易变色的缺陷，同时赋予木材某些特殊功能的一门新兴学科，是木材科学的一个重要分支。是什么意思？

Wood timber modification is to ensure high strength-weight ratio, ease of processing, heat and sound insulation, natural texture and other inherent advantages of simplicity of the premise, through a series of physical, chemical treatment, to overcome the shrinkage of wood swelling, poor stability, a

Timber modified is the guarantee that timber Gao Qiang heavy than, easy-to-processing, sound-absorbing heat insulation, rustic texture inherent advantages such as the premise naturally, through a series of physical, chemical processing, and overcoming deflation Wet wood stem inflation rates, stabili

The lumber modification is in the guarantee lumber excel in anharmonic ratio, easy to process, the sound absorption heat insulation, the texture plain nature and so on under the inherent merit premise, through a series of physics, chemistry processing, the victory lumber air shrinkage wet zhang, the

Wood modified sexual is in guarantee wood high strength heavy than, and easy to processing, and suction tone insulation, and texture simplicity natural, inherent advantages of premise Xia, and through series of of physical, and chemical processing, overcome wood dry shrink wet expansion, and stabili

That the timber is modified gua