分支环网+全光纤保护机制
ONU ring+all-optical-fibers protection mechanism
多样性保护机制
diversity conservation mechanism
耕地保护机制
mechanism of cultivated land protection
交易保护机制
load credit trading mechanism
X射线荧光光光谱
X-ray fluorescence spectrometry
保护光路径自动建立算法
algorithm of automatic establishment of the protec
电弧光保护技术
electric arc light protection technique
电弧光保护双判据
arc protection double criterions
电弧光保护系统
arc protection system
arc light protection system
电弧光保护装置
the Arc Light Protection Device
发光机制
Luminescence mechanism
emission mechanism
photoluminescence mechanism
light-emitting principles
luminant mechanism
phosphorescent mechanism
upconversion mechanism