过早收缩

【医】 anticipated systole; extrasystole; premature beat
premature contraction; premature systole; proiosystole

过的英语翻译：

across; cross; excessive; over; pass; spend; through
【医】 per-

早的英语翻译：

betimes; early; in advance; long ago; morning
【机】 speedy

收缩的英语翻译：

shrink; contract; draw back; pinch; constriction; constringency; shrinkage
【化】 shrinkage
【医】 contract; contraction; systole; Z.; zuckung
【经】 contraction