A class of Riemannian
manifolds is studied in this paper. The main conditions are 1) the injectivity is
bounded away from 0; 2) a norm of the Riemannian curvature is bounded; 3) volume
is bounded above; 4) the Ricci curvature is bounded above by a constant divided by
square of the distance from a point. Note the last condition is scaling invariant. It is
shown that there exists a sequence of such manifolds whose metric converges to a
continuous metric on a manifold.