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 PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL c7
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL c8
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL c9
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL d1