2.absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygenlack and eventually to death.
4.Already scientists have begun to study the problems of living in outer space; pressure, lack of oxygen, in outer space: pressure, lack of oxygen, and weightlessness.
10.This aerator, with high efficiency and fast speed in increasing oxygen, is able to efficiently and rapidly solve hypoxia and death of fish resulted by lack of oxygen in pond.