Description
在整定参数无把握的情况下，一般都不宜把初始试验参数放得太灵敏，例如比例度不宜放得太小，以免系统出现振荡。一般作法是在手动控制时，阀门需要开得较大者，P值(比例度)可选得小一些；阀门不需要开得较大者，P值(比例度)可逃得大一些。
HP 43855B X Ray system
X0020 Panoramic Corp. PC-1000 Pan X-Ray System
IDDC Model 1200 Porta Ray Portable X Ray System
L3 COMMUNICATIONS MODEL PX-M SERIES II X-RAY SYSTEM
HP 43855A X Ray System
Kodak 2100 Intraoral X-ray System
NEW Kodak 2100 DC Intraoral X-Ray System
Gendex Gx-Pan Dental Panoramic X Ray X-Ray xray System
LORAD Mammography M-IIE M-II-E X-RAY System Unit Mammo
Philips Medical Systems X-Ray Tube Housing Assembly
