描述
微分时间D的影响:微分作用的强弱主要看微分时问的大小。D越大,微分作用越强,这和积分时间刚好相反。微分作用越强,调节作用越强,其结果使振荡越来越剧烈,周期也越来越短。
DENTAL MOBILE HIGH FREQUENCY X-RAY MACHINE SYSTEM
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL
Dental Portable Mobile X – RAY Machine System Digital
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
Single phase GE x-ray system
GE Medical Systems ZRLTXDMR Stereotix 2 X-RAY Equipment