Description
PID参数整定并不是万能的，因为系统的控制质量与对象特性、干扰形式和大小、控制方案等都有关系，所以当控制方案选择不当时，PID参数怎样调整，也不能达到预期的控制效果。
DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL
DENTAL MOBILE HIGH FREQUENCY X-RAY MACHINE SYSTEM
DENTAL PORTABLE MOBILE X RAY MACHINE SYSTEM w/DIGITAL
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GE Medical Systems ZRLTXDMR Stereotix 2 X-RAY Equipment
AMD Athlon II X2 Desktop System BLUE RAY~TV Tuner Card!
DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM DIGITAL P
DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM DIGITAL
PHILIPS MEDICAL SYSTEM X-RAY TUBE SRO 2550 ROT 350
