For sizing purposes, IBM capacity planners generally group mail users into four different categories based on workload characteristics: light, medium, heavy, and power users.
出于分级目的，IBM容量计划人员通常基于工作量特征将邮件用户分为四个种类：轻、中、重和强用户。
2
The light scattering characteristics of particles in phase Doppler sizing anemometry is calculated with a theoretical model based on geometrical optics approach.
应用几何光学近似理论模型计算了激光相位多普勒系统中微粒的光散射特性。
3
The ultrasonic measurement results are compared with light extinction method measurement, which shows this method has a good foreground for particle sizing.