abnormal degree of fiber efficiency cross section
textile fiber degree of fineness
28Si-scattering cross section
2n-removal cross section
2n-removal reaction cross section
4n-removal cross section
75As neutron radiative capture cross section
a column charged of the cross section of the conve
a tube with varying cross section
abnormity cross section
abrupt change of cross section
absorption cross section
吸收截面
吸收横截面
吸收横断面
吸收面积
粉尘旋风分离器