These practices prove that open market operations have now become the most important monetary policy instrument and a principal instrument of the routine operation and played a more and more important role . it means that our national monetary policy regulation has realized the shift from direct control to indirect control 实践证明,公开市场业务已经成为我国央行投放基础货币的主渠道,成为日常货币政策操作的主要政策工具,发挥着越来越重要的作用,这也标志着我国货币政策调控成功地实现了由直接调控向间接调控的基本转变。