GB/T 40401-2021骨架密度的测量气体体积置换法标准
英文:Determination of density by volumetric displacement—Skeleton density by gas pycnometry GB/T 40401-2021介绍: 国家标准《骨架密度的测...
英文:Determination of density by volumetric displacement—Skeleton density by gas pycnometry GB/T 40401-2021介绍: 国家标准《骨架密度的测...