燃速与辐射通量之间的关系可以由两支相交直线构成的线性方程进行描述,其中折点(交点)是外界辐射能作用下固体双基推进剂燃烧的一......

INTRODUCTIONrnThe disturbance syndrome of thoracic vertebral joint means theclinical syndrome mainly indicating backache......