贵刊1989年第1期刊登了《压缩圈半径R_1计算公式的更正》一文。文中指出:“公式 R_1=(?),多年来在一些论述大爆破的经典著作或书刊印刷时和设计人员的应用中,都错误地多点了一位小数点,使得压缩圈半径 R_1的计算值缩小了十倍,造成了计算上的误差,应用中的错误,影响爆破效果,所以R_1=(?)应更正为 Your first issue in 1989 published a “compressed ring radius R_1 correction formula” one article. The article states: "The formula R_1 = (?), Over the years in some of the classic books or books dealing with blasting and the designer’s application, the wrong point more than a decimal point, making the calculation of the compression ring radius R_1 Narrowed ten times, resulting in the calculation of errors, errors in the application, affecting the blasting effect, so R_1 = (?) Should be corrected to