常見例句雙語例句The data acquisition circuit is composed of chip 89C52 and 8254. External measuring signal at interrupt mode triggers 89c52 to read number in 8254 counter.由89c52和8254組成數(shù)據(jù)處理電路。 外部測量信號以外部中斷方式觸發(fā)89c52讀取8254計數(shù)。 返回 external signal interrupt