In the first chapter of this paper we introduce the concept and the category of the gravitational effect before presentation of the mass - defect effect . then we simply introduce the basic knowledge in stellar and accreting theory relating to the mass - defect effect 本文第一章中,首先介绍引力效应的概念及所属范畴,然后引出质量亏损效应,并介绍了与这一效应相关的恒星物理学及吸积理论的基本知识。