例句與造句

1. A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented , it is composed of avr microcontroller , pwm power driver , unit of speed detection using encoder and a serial communication interface , etc . fuzzy pid algorithm is employed to control the speed and position of wmr . the method can solve effectively some problems such as the uncertainty of wmr ' s model , the varieties demand , the change of situation
   其次，設(shè)計(jì)了基于avr微控制器( at90s8515 )的移動(dòng)控制系統(tǒng)，其中主要包括pwm功率驅(qū)動(dòng)、測速單元和串行通訊模塊等：對(duì)機(jī)器人速度、位置控制采用模糊pid算法，較好地克服了移動(dòng)機(jī)器人模型的不確定性、轉(zhuǎn)速位置控制要求的多變和環(huán)境改變等因素的影響。
2. It's difficult to find closing pulse in a sentence. 用closing pulse造句挺難的