GB/T 15777-2017木材顺纹抗压弹性模量测定方法国家标准
英文:Method for determination of the modulus of elasticity in compression parallel to grain of wood GB/T 15777-2017介绍: 国家标...
英文:Method for determination of the modulus of elasticity in compression parallel to grain of wood GB/T 15777-2017介绍: 国家标...