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单词
uniform field focusing
释义
uniform field focusing
Encyclopedia
工学
电子注聚焦
释
uniform field focusing
均匀场聚焦
使电子注内空间电荷发散力、离心力和磁聚焦力之间达到平衡,使电子注没有波动或波动很小的电子注聚焦方法。
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file directory
file emergency management
file fragmentation
file handle
file-item list
file level sorting
file maintenance
file management
file management of place names
file management system
file management system, FMS
file meristem
file method
file modified time
file name extension
file of fonds
file organization technology
file protection
file risk management
file room
file search
file server
file size
files management in Republic of China
files of forest resources
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