聚集密度 meaning in Chinese

gather density

The typical result shows that the spectral shift of zns / mgf2 narrow band interference filters is less than 0 . 5nm . the formula for estimating packing density of the films was put forward in terms of the measured . and the packing density of mgf2 layers in the filters was calculated
计算了滤光片中mgf _ 2膜层的聚集密度，离子辅助使mgf _ 2的聚集密度从常规条件下的0 . 70提高到0 . 97 ，增幅达38 。
A comparison of the optical and mechanical performance is made between with iad and without iad . the optical performances include the refractive index the extinction coefficient the packing density the vaccum - to - air shift and the afm images of the surface ; the mechanical performances include the adhesion and the hardness
光学特性涉及折射率、消光系数、波长漂移、聚集密度和表面粗糙度，机械特性涉及硬度和附着力。通过研究，发现离子辅助沉积对单层薄膜的光学特性和机械特性均有明显改善。