The results indicate incidence laser intensity and plasma backgrounddensity are important factors affecting convergent intensity.
计算结果表明：入射激光强度、入射激光波长及等离子体背景密度是影响会聚强度的重要因素。
2
The gravitational lens equations account for all the variables such as distance and density, and provide a better idea of when light left the background galaxy and how far it traveled.
引力透镜公式计算所有的变量，比如距离和密度，对光何时离开背景星系以及行走了多远的距离给出更好答案。
3
BACKGROUND: the overall evaluation on bone density and bone strength of the calcaneal can provide a new way for prevention and treatment of osteoporosis.