spectrum width meaning in Chinese

光谱宽度
频谱宽度
谱宽

Using the relation between spectrum width and entropy and the different contributions devoted by each angle motion parameter to the echo spectrum width of the difference beam , the global optimal estimation is obtained through searching the angle motion parameters of zero and higher order via max - entropy and min - entropy respectively
该方法利用了各阶运动参数对差波束回波谱宽度的不同贡献以及熵与谱宽度的关系，通过最大熵和最小熵分别对0阶和1阶以上角运动参数进行搜索，得到全局最优估计。
For our laboratory is changing toward industrialization , a lot of work on conventional ingaas / gaas / algaas quantum well laser has been done . how the parameters , such as threshold current density , slope efficiency , fwhm and spectrum width , are influenced and how much the influence is , are discussed by the numbers . the effective means how to improve a certain performance parameter are purposed too
由于本实验室正处于由试验研究向产业化迈进的阶段，针对常规ingaas / gaas / algaas量子阱激光器做了很多工作，文中系统论述了常规量子阱激光器的各项性能参数?阈值电流密度、斜率效率、远场发散角、光谱线宽等的影响因素及改进的有效办法，并针对激光器p ? i线性度不好、远场发散角出现多瓣的现象，通过理论分析找出原因所在并进行了改进，有效解决了以上问题。