能量强度的英文

例句与用法

1. Each wavelength of optical radiation has an associated threshold retinal exposure level that must be exceeded in order for retinal damage to be observed - shorter wavelengths are more effective in that less energy is needed
   对应每种波长的光都有一个极限值,超过这个极限值才能使视网膜受到损害.对于较短波长的光幅射,这个极限值的能量强度较低
2. The process of target identification is formulated , which involved feature extraction , dimension reduction and classification . for solving the overlap of each subspace of a wavelet library in frequency , there are two approaches that are best basis ( bb ) and local discriminant bases ( ldb ) . their measure and searching algorithm were researched
   从数学的角度描述了目标识别过程，依据cwt和多分辨分析表示信号的特点，提出了以信号尺度?小波能量谱、时间?小波能量谱、多分辨分解系数和各子带能量强度为特征的方法。
3. In order to realize the measurement of several parameters and broad - band spectrum ( 250nm ~ 3000nm ) on the same standard equipment , we make use of two main light paths . one is to measure spectral radiance , the other is to measure irradiance through integral sphere , translational stage and mirror changing the light path
   本标准装置涉及参数多，包括光谱辐照度、光谱辐亮度、光源色温；光谱范围宽，覆盖了紫外、可见、红外；在同一套设备上实现多参数、宽光谱以及能量强度变化为7个数量级的精确测量。