We explain that a transformation module can be used to describe a partial implementation of an abstract data type and a transformation control directive can be used to apply a transform defined by a transformation module to an abstract variable and the related operators in a program. 举例说明了如何使用变换模块描述一个抽象数据类型的部分实现,并通过变换控制命令来完成程序中抽象变量(AV)及有关操作的变换过程;
A series of formulae, which denote the kinematic parameters with the abstract design variable a, are derived according to the three-staged analysis method of the piston motion. 根据活塞运动的三段分析法导出了用抽象设计变量α表示的运动学参数表达式,并以此为基础,系统研究了液压冲击机构各个组成部分的设计方法,导出了所有重要结构参数的设计计算公式。
Abstract The lag variable models about economic fluctuation in China are constructed demonstratively. 文章从总量和结构两方面,实证地构造了,自1978年以来中国经济波动的滞后变量模型。
Abstract The added variable plot, partial residual plot and constructed variable plot are three useful diagnostic procedures in assessing the accuracy of a normal linear model. 在评价一个正态线性棋型的准确性时,偏残差图、增加变量图和构造变量图是三个有用的过程。
The second experiment is a single-factor within subject design in which independent variable includes : content properties ( specific contents, abstract content ), dependent variable as follows : subjects ' correct response rate and eye movement indicators. 实验二采用单因素被试内设计,自变量为:内容性质(具体内容、抽象内容);因变量为被试反应的正确率和眼动指标。