resue

A study on the resue shrinkage-full mining methed at andI gold mine

分采留矿全面法在安底金矿的试验研究

However , conventional CAD production models are all built separately and aimed at its analysis and simulation process , and are short of harmonization mechanism , and are badly in resue and integration .

然而，传统的CAD产品模型都是针对各自的分析和仿真过程分别建立的，缺乏协调机制，在可重用性和可集成性方面都较差。

Software resue is a solution to construct a new system by using existed software production or project knowledge , which can avoid repeated work in the software development . It is regarded as a feasible approach to solve the software crisis , promote efficiency and quality of software production .

软件复用是运用现存系统的软件制品或工程知识构造新系统、避免重复劳动的解决方案，它被视为解决软件危机、提高软件生产效率和质量的现实可行的途径。

Their catalytic activity was evaluated for esteri ? cation of palmitic acid and investigated the hydrophobic organic groups on the influence of catalytic activity . The effects of reaction variables such as methanol to acid ratio , amount of the catalyst , resue times of the catalysts were studied .

考察了其在棕榈酸酯化反应中的表现及惰性疏水性有机基团的修饰对催化活性的影响，探讨了反应条件：醇酸比，催化剂用量，催化剂重复使用次数对转化率的影响。