20年前,我们在《石片形制探究——旧石器研究的一种新的理论与方法》一文中,研究了石片的破裂机理和石片形成过程中的规律性因素——背脊控制原理,阐述了背脊对石片形状的影响和作用~([1])。“背脊控制”是石片打制过程中的一个自然规律,在人类对其规律尚未掌握之前就业已存在。当人类发现并掌握了这一规律之后,使石片的生产和打片技术发生了飞跃性的变化。石片的形状随着背脊由“简单→复杂→规整”的演 Twenty years ago, we studied the rupture mechanism of stone tablets and the regularity factor in the stone tablet formation process in “Stone Form Exploration - A New Theory and Method of Palaeolithic Research” - the principle of ridges control , Describes the back of the stone shape and effect ~ ([1]). “Back control ” is a natural law in the process of stone tabletting, and it has existed before human beings have mastered its laws. After human beings discovered and mastered this law, the production of stone tablets and the technology of playing chips have undergone tremendous changes. Stone shape with the spine from the “simple → complex → regular” performance