This allows for more precise choice of annotation structure and more flexible annotation retrieval. 这就顾及了更精确的注释结构选择以及更灵活的注释检索。
A general subset selection method, the branch and bound technique, is applied to a control structure selection problem. 一种通用的子集合选择方法一分支定界法被应用于控制结构选择问题。