描述
计算机控制系统中干扰的来源是多方面的,有时甚至是错综复杂。总体上,按照来源,干扰可分为内部干扰和外部干扰。外部干扰与系统所在环境和使用条件有关,与系统内部结构无关。内部干扰则由系统结构布局、制造工艺等引入。
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL e
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL f
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL g
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL i
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL j
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL k
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL