长: older; elder; senior及: reach; come up to短: short; briefp: be p and q 上等。 mind [b ...r: r ＝ 1.refrigerator. 2. ...间: space in between; opening期: designated time交替: supersede; replace出现: appear; arise; emerge; grow; ...p-r间期假交替: pseudoalternation of p-r intervalp-r间期: an ecg interval; an electrocardiogram interval; p-r interval; pr intr-p间期: r-p interval短p-r间期: short p-r interval腹泻与便秘交替出现: alternation of diarrhea and constipationp-r间期缩短: shortened p-r intervalp-r间期延长: prolonged p-r interval恒定的p-r间期: constant p-r intervalp-r间期逐次增加: successive p-r intervals increase短p-r间期假象: false appearance of short p-r intervalp-r间期进行性延长: progressive lengthening of p-r intervals异位搏动后长p-r间期: long p-r interval in post-ectopic beatp-a间期: p wave to a wave in his bundle electrogram p-a interval; p-a intervalp-s间期: p-s intervalr-r间期: r r interval; r-r interval平均r-r间期: average r-r interval
