[晶]粒间穿透
intergranular penetration
C60笼的穿透势垒
Penetration barrier of C60
THz物质穿透特性
THz transmission property
X射线穿透法
X-ray transmission method
γ射线穿透法
Gamma- ray penetration method
γ射线穿透方法
low energy γ rays transmission method
γ射线穿透式液体密度计
gamma-ray penetration type liquid density meter